Staging: bcm: Fix checkpatch warning for long line.

Fixed a line that was over 80 characters in Bcmchar.c.

Signed-off-by: Ingrid Cheung <hi@ingridcheung.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>