wprobe: fix build against Linux 3.7

git-svn-id: svn://svn.openwrt.org/openwrt@35185 3c298f89-4303-0410-b956-a3cf2f4a3e73
madwifi: fix build against Linux 3.7

git-svn-id: svn://svn.openwrt.org/openwrt@35186 3c298f89-4303-0410-b956-a3cf2f4a3e73