ramips: preinit: use iproute2 instead of vconfig

Replace use of vconfig with the corresponding iproute2 syntax in
/lib/preinit/07_set_preinit_iface_ramips

The switch reset work-around needed on some ramips targets used the
deprecated vconfig tool to bring up the pre-init/failsafe interface.
This doesn't work on recent builds where vconfig is no longer being
deployed, resulting in the device being unreachable when triggered
into failsafe mode.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

SVN-Revision: 47349

target/linux/ramips/base-files/lib/preinit/07_set_preinit_iface_ramips

@@ -23,8 +23,8 @@ ramips_set_preinit_iface() {
 		swconfig dev rt305x vlan 1 set ports "0 6"
 		swconfig dev rt305x port 6 set untag 0
 		swconfig dev rt305x set apply 1
-		vconfig add eth0 1
-		ifconfig eth0 up
+		ip link add link eth0 name eth0.1 type vlan id 1
+		ip link set eth0 up
 		ifname=eth0.1
 	else
 		ifname=eth0