[media] staging: media: bcm2048: fix coding style error

Simple style fix (checkpatch.pl: "space prohibited before that ','").
For the eudyptula challenge (http://eudyptula-challenge.org/

).

Signed-off-by: Christian F. Resell <christian.resell@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>