[media] Staging: media: radio-bcm2048: Fix indentation

Align multiple lines statement with parentheses
Signed-off-by: NJean-Baptiste Abbadie <jb@abbadie.fr>
Acked-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>