media: dw2102: Fix minor issues

Found by checkpatch.

Link: https://lore.kernel.org/linux-media/20220116112238.74171-4-micha@freedict.org


Signed-off-by: Michael Bunk <micha@freedict.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>