Switch from armhf to armv7
- Apart of the usual stuff CONFIG_CRYPTO_AES_ARM_BS must be disabled
otherwise it breakes kernel compilation with some weird assembler error
Netboot
- CONFIG_BLK_DEV_NBD=y enables /dev/nbd support
- nbd.max_part=16 kernel parameter must be added otherwise it's zero
which causes that kpartx cannot create partitions
[ci:skip-build]: Already built successfully in CI