The device booting successfully indicates that bootloader has been
updated. Set compat_version to 1.1 on new configs and bump
compat_version to 1.1 on first boot after a successful sysupgrade.
Fixes: 6368ed1ae5 ("mediatek: mt7623: phase out uImage.FIT partition parser")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>