Staging: bcm: Qos: Fix some coding style issues

Fixed spacing/tabs issues that were found using checkpatch.

Signed-off-by: Lilis Iskandar <veeableful@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>