media: staging: media: omap4iss: align arguments with open parenthesis

Cleans up checks of "Alignment should match open parenthesis"
in iss.c:96.

Signed-off-by: Beatriz Martins de Carvalho <martinsdecarvalhobeatriz@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>