media: omap3isp: implement enum_fmt_vid_cap/out

media: omap3isp: implement enum_fmt_vid_cap/out

Add missing ioctls. This makes v4l2-compliance happier:

fail: v4l2-test-formats.cpp(516): pixelformat 59565955 (UYVY) for buftype 1 not reported by ENUM_FMT
	test VIDIOC_G_FMT: FAIL
fail: v4l2-test-formats.cpp(516): pixelformat 59565955 (UYVY) for buftype 1 not reported by ENUM_FMT
	test VIDIOC_TRY_FMT: FAIL
fail: v4l2-test-formats.cpp(516): pixelformat 56595559 (YUYV) for buftype 1 not reported by ENUM_FMT
	test VIDIOC_S_FMT: FAIL

Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>