[media] s5p-jpeg: Fix output YUV 4:2:0 fourcc for decoder

Output samples during decoding phase for the YUV 4:2:0 format
are arranged in the manner compatible with 2-planar NV12,
not 3-planar YUV420 fourcc.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/s5p-jpeg/jpeg-core.c

@@ -58,7 +58,7 @@ static struct s5p_jpeg_fmt formats_enc[] = {
 static struct s5p_jpeg_fmt formats_dec[] = {
 	{
 		.name		= "YUV 4:2:0 planar, YCbCr",
-		.fourcc		= V4L2_PIX_FMT_YUV420,
+		.fourcc		= V4L2_PIX_FMT_NV12,
 		.depth		= 12,
 		.colplanes	= 3,
 		.h_align	= 4,