rpi-base.inc: Don't install kernel image into rootfs
rpi-base.inc: Don't install kernel image into rootfs

The kernel image is installed into the FAT32 boot partition and does not need to
also be installed into the rootfs.

Signed-off-by: Paul Barker <a027184a55211cd23e3f3094f1fdc728df5e0500@paulbarker.me.uk>

LocutusOfBorg/meta-raspberrypi,leon-anavi/meta-raspberrypi,kraj/meta-raspberrypi,leon-anavi/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,d21d3q/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,toolmmy/meta-raspberrypi,d21d3q/meta-raspberrypi,d21d3q/meta-raspberrypi,agherzan/meta-raspberrypi,schnitzeltony/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,toolmmy/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,toolmmy/meta-raspberrypi,kraj/meta-raspberrypi,agherzan/meta-raspberrypi,kraj/meta-raspberrypi,schnitzeltony/meta-raspberrypi,leon-anavi/meta-raspberrypi,toolmmy/meta-raspberrypi,d21d3q/meta-raspberrypi,schnitzeltony/meta-raspberrypi