staging: rtl8188eu: checkpatch fixes: line over 80 characters splited into two parts

This is checkpatch fixes for hal/bb_cfg.c file:
line over 80 characters.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>