[media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file

Fixes the following error:
ERROR: open brace '{' following enum go on the same line
+enum MFC_SHM_OFS
+{

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>