linux-firmware can't be upgraded in jammy breaking autopkgtests

[Gianfranco Costamagna]

steps to reproduce:
jammy chroot:
dpkg -i linux-firmware_20220302.gitee0667aa-0ubuntu1_all.deb
dpkg -i linux-firmware_20220314.gitcd01f857-0ubuntu1_all.deb

dpkg: error processing archive /var/cache/apt/archives/linux-firmware_20220314.gitcd01f857-0ubuntu1_all.deb (--unpack):
unable to open '/lib/firmware/ath11k/WCN6855/hw2.0/regdb.bin.dpkg-new': No such file or directory

example of failing autopkgtests:

autopkgtest for pystemd/unknown: arm64: Regression ♻
autopkgtest for samba/unknown: arm64: Regression ♻
autopkgtest for shibboleth-sp/unknown: arm64: Regression ♻
autopkgtest for snapd/unknown: arm64: Regression ♻
autopkgtest for spice-vdagent/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for squid/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for sssd/unknown: arm64: Regression ♻
autopkgtest for strongswan/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for stunnel4/unknown: arm64: Regression ♻
autopkgtest for swupdate/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for systemd/unknown: arm64: Regression ♻
autopkgtest for systemd-bootchart/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for tang/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for tgt/unknown: arm64: Regression ♻
autopkgtest for tinyssh/20220311-1: amd64: Regression ♻ , armhf: Regression ♻ , ppc64el: Regression ♻ , s390x: Regression ♻
autopkgtest for tinyssh/unknown: arm64: Regression ♻
autopkgtest for tpm2-abrmd/unknown: arm64: Regression ♻
autopkgtest for tpm2-pkcs11/unknown: arm64: Regression ♻
autopkgtest for ubuntu-drivers-common/1:0.9.5.1: amd64: Pass, ppc64el: Pass, s390x: Not a regression
autopkgtest for ubuntu-drivers-common/unknown: arm64: Regression ♻
autopkgtest for udisks2/unknown: arm64: Regression ♻
autopkgtest for umockdev/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for upower/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for usbauth/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for util-linux/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for vlc/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for vte2.91/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for webhook/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for wireshark/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for wlroots/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for yder/unknown: arm64: Reference test in progress, but real test failed already ♻
autopkgtest for zfs-linux/unknown: arm64: Regression ♻

I'm attaching the full strace