[media] v4l: Add fourcc definitions for new formats

Add the following new fourcc definitions, for multiplanar YCbCr:
V4L2_PIX_FMT_NV21M, V4L2_PIX_FMT_NV12MT_16X16 and compressed formats:
V4L2_PIX_FMT_H264_MVC, V4L2_PIX_FMT_VP8.

Signed-off-by: Jeongtae Park <jtp.park@samsung.com>
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>