Staging: vt6656: fix coding style issues in 80211mgr.c

This is a patch to the 80211mgr.c file that fixes up warnings
found by the checkpatch.pl tool

Signed-off-by: Timofey Trofimov <tumoxep@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>