exynos5: libgscaler: added the V4L2_PIX_FMT for YUV420P

V4L2_PIX_FMT for YUV420P is missed in the libgscaler code.
The missed V4L2_PIX_FMT code has been added.

Change-Id: I6db81a9ce3acbb44dc4fd10a767a679298f53e3b
Signed-off-by: Yongbae Song <yb.song@samsung.com>
1 file changed