rpi-base.inc: Add kernel modules to all images
rpi-base.inc: Add kernel modules to all images

Add kernel modules, including i2c-dev and i2c-bcm2708, to variable
MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS. This way kernel modules will
be present in all images based on packagegroup-core-boot,
including the core-image-minimal image.

Otherwise, if modules, are in variable MACHINE_EXTRA_RRECOMMENDS
they will be added only in images based on packagegroup-base,
which does not include the core-image-minimal or
core-image-full-cmdline images.

Signed-off-by: Leon Anavi <15d13d7e2c6115f28df053122512bfcb5eb2dbf7@konsulko.com>

agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,schnitzeltony/meta-raspberrypi,schnitzeltony/meta-raspberrypi,agherzan/meta-raspberrypi,schnitzeltony/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi