base-files: include 'reconf' in help output of 'wifi' command

Reported-by: Dirk Brenken <dev@brenken.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/base-files/files/sbin/wifi

@@ -6,7 +6,7 @@
 
 usage() {
 	cat <<EOF
-Usage: $0 [config|up|down|reload|status]
+Usage: $0 [config|up|down|reconf|reload|status]
 enables (default), disables or configures devices not yet configured.
 EOF
 	exit 1