Staging: wlan-ng: fixed coding style issues in p80211conv.c

This is a patch to the p80211conv.c file that fixes a couple of coding
style issues found by the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>