mondrianwifi: Switch to using our kernel

Change-Id: I664d85d4759d5e40b0c5ed8a49de839dca4e2d31
mondrianwifi: power: Record the inv master toggle for sensors

I'm not sure if we need this or not, so it doesn't do anything.

Change-Id: If3071eb02bc1f35ddff9049dce82172a38e3876d
mondrianwifi: lights: Use the correct lcd-backlight brightness

Fixes manual brightness control.  Automatic control needs working
sensors still.

Change-Id: Iceb2b875d384afeaaf0e9631c3616acb0abc883c
mondrianwifi: wifi: Fix loading of device firmware

Change-Id: Id44987e84ded07cbfbe3e24cb9cdb081456ff616