Backporting the version from oracular allows to fix both the hwe 6.8 kernel and the GA 5.15 kernel.

Test build with 6.8:

intel-ipu6.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

intel-ipu6-isys.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

intel-ipu6-psys.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

hm11b1.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov01a1s.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov01a10.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov02c10.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov02e10.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov08a10.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov08x40.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov13858.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

ov8856.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

hm2170.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

hm2172.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/

hi556.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.8.0-35-lowlatency/updates/dkms/


Test build with GA 5.15:

intel-ipu6.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

intel-ipu6-isys.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

intel-ipu6-psys.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

hm11b1.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov01a1s.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov01a10.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov2740.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

gc5035.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov08a10.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov13858.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

ov8856.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

hm2170.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

hm2172.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/

hi556.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-115-generic/updates/dkms/