media: rockchip: rga: add local variable for pix_format

The local variable allows to simplify the accessed to the format and
makes it easier to change the type of the format.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Michael Tretter 2023-10-13 13:00:30 +02:00 • committed by Hans Verkuil
commit 4e4dd24e30