media: s5p-mfc: Fix in register read and write for H264

media: s5p-mfc: Fix in register read and write for H264

commit 06710cd5d2436135046898d7e4b9408c8bb99446 upstream.

Few of the H264 encoder registers written were not getting reflected
since the read values were not stored and getting overwritten.

Fixes: 6a9c6f681257 ("[media] s5p-mfc: Add variants to access mfc registers")
Cc: stable@vger.kernel.org
Cc: linux-fsd@tesla.com
Signed-off-by: Smitha T Murthy <smitha.t@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>