rpi-base.inc: Fix device-tree overlays
rpi-base.inc: Fix device-tree overlays

Add a note so we don't break it again on next kernel upgrade

Signed-off-by: Andreas Müller <d72a15aaaca3a7afa855175c72dc8d2e05931e32@gmail.com>

schnitzeltony/meta-raspi-light,schnitzeltony/meta-raspi-light