Add core DRM device and alternative platform device data
for FIMD DRM subdriver. Based on the initial patch by
Joonyoung Shim <jy0922.shim@samsung.com>.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>