[media] s5k5baf: Fix checkpatch error

Fixes the following error:
ERROR: return is not a function, parentheses are not required
FILE: drivers/media/i2c/s5k5baf.c:1353:

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>