[media] m5mols: Replace missing header

[media] m5mols: Replace missing header

The include/media/s5p_fimc.h header has been removed in commit
21bc60bc3a02af021d8328f9d8a89d4a364f33f0 ("exynos4-is: Remove support
for non-dt platforms"). This broke compilation of the m5mols driver.

Include the include/media/exynos-fimc.h header instead, which contains
the S5P_FIMC_TX_END_NOTIFY definition required by the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>