Staging: bcm: fix line over 80 characters in Bcmchar.c

Fix checkpatch.pl issues with line over 80
characters in Bcmchar.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>