Staging: bcm: Fixed warning 'space required before the open parenthesis '(''.

This patch fixes warning 'space required before the open parenthesis '(''
found by checkpacth.pl in driver bcm.

Signed-off-by: Tülin İzer <tulinizer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>