Use the new fitblk driver on the BananaPi R2 as well as UniElec U7623.
Introduce boot device selection for fitblk's /chosen/rootdisk
handle, similar to how it is already done on MT7622, MT7986 and MT7988.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
U-Boot commit ea6fdc13595 ("dm: button: add support for linux_code in
button-gpio.c driver") makes it mandatory to specify linux,code for all
buttons. As that broke handling of the reset button in U-Boot with the
update to U-Boot 2023.04, add linux,code for all butons.
Reported-by: @DragonBluep
Fixes: 50f7c5af4a ("uboot-mediatek: update to v2023.04")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>