Revert "board/raspberrypi: handle dtb overlays for all variants"
This reverts commit 6021f3678b44d43da7057e3135da842cde1ffa05.
That change is no more relevant since the genimage.cfg files are
generated by the commit e37ee5acdc (board/raspberrypi/post-image.sh:
generate genimage config from template if not present), and since the
variant-specific files were dropped off by the commit fc5cdeed72
(board/raspberrypi: drop variant-specific genimage files).
This removes the very last alive piece of change of the commit
6021f3678b (board/raspberrypi: handle dtb overlays for all variants);
the commit is fully reverted now.
Signed-off-by: Gaël PORTAY <gael.portay@rtone.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>