staging: rtl8188eu: checkpatch fixes: spaces preferred around that '|' in hal/bb_cfg.c

This is checkpatch fixes for hal/bb_cfg.c file:
spaces preferred around that '|'.

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