broadcom-wl: fix setup of virtual interfaces (patch by Nathan Hintz)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27868 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/broadcom-wl/patches/008-fix_virtual_interfaces.patch

@@ -0,0 +1,11 @@
+--- a/driver/wl_linux.c
++++ b/driver/wl_linux.c
+@@ -1541,6 +1541,8 @@ wl_add_if(wl_info_t *wl, struct wlc_if* 
+ 		return NULL;
+ 	}
+ 
++	wl_if_setup(wlif->dev);
++
+ 	sprintf(wlif->dev->name, "%s%d.%d", devname, wl->pub->unit, wlif->subunit);
+ 	if (remote)
+ 		bcopy(remote, &wlif->remote, ETHER_ADDR_LEN);