[media] bcm3510: fix indentation

drivers/media/dvb-frontends/bcm3510.c:688 bcm3510_reset() warn: inconsistent indenting
drivers/media/dvb-frontends/bcm3510.c:711 bcm3510_clear_reset() warn: inconsistent indenting

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>