staging: brcm80211: remove checkpatch warnings 'suspect code indent'

The driver sources contained a couple of checkpatch warnings of the
given class. These have been cleaned up.

Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>