Comment 0 for bug 2054556

[Impact]

Since the model names in the DTBs have been updated in AMD-Xilinx kernel, we need to update the machine entries in flash-kernel as well.

As part of this update, we will also separate the bootscript of Kria boards from ZCU so that we wont have
a risk of introducing regression to other boards.

[Where problems could occur]

The patch adds support for the new model names of AMD-Xilinx Kria boards and also separates the boot script.

So the problem could only occur on the following boards:
* Kria KR260
* Kria KV260
* Kria KD240

[Test Case]

* Enable proposed updates (https://wiki.ubuntu.com/Testing/EnableProposed)
* Update flash-kernel to the version in -proposed: sudo apt install -t jammy-proposed flash-kernel
* Run flash-kernel (if the upgrade didn't already): sudo flash-kernel
* Reboot: sudo reboot
* Ensure system boots successfully

[Regression Potential]

As the patch creates a new boot script for boards (listed above), booting should be re-tested against the potentially affected boards under the proposed package.