Integrate meta-seconorth-machine/bump_kernel
Commit: seco-ne/yocto/layers/meta-seconorth-machine@222ea99d
kernel: Update kernel for i.MX8M to 5.15.32
The 5.15.32 kernel is the first official kernel from NXP for Kirkstone. Forked the kernel from NXP and applied our changes on top of it.