ramips: get rid of downstream network device label patch

Use a simple Shell script like on filogic target to get rid of downstream
patch for the Ethernet driver which was rejected upstream long ago.

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

target/linux/ramips/mt7621/base-files/lib/preinit/04_set_netdev_label

@@ -0,0 +1,15 @@
+set_netdev_labels() {
+	local dir
+	local label
+	local netdev
+
+	for dir in /sys/class/net/*; do
+		[ -r "$dir/of_node/label" ] || continue
+		read -r label < "$dir/of_node/label"
+		netdev="${dir##*/}"
+		[ "$netdev" = "$label" ] && continue
+		ip link set "$netdev" name "$label"
+	done
+}
+
+boot_hook_add preinit_main set_netdev_labels

target/linux/ramips/patches-6.6/700-net-ethernet-mediatek-support-net-labels.patch

@@ -1,34 +0,0 @@
-From bd0f89de5476ca25e73fae829ba3e1dafae1d90d Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com>
-Date: Fri, 21 Jun 2019 10:04:05 +0200
-Subject: [PATCH] net: ethernet: mediatek: support net-labels
-
-With this patch, device name can be set within dts file in the same way as dsa
-port can.
-Add: label = "wan"; to GMAC node.
-
-Signed-off-by: René van Dorst <opensource@vdorst.com>
----
- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -4662,6 +4662,7 @@ static const struct net_device_ops mtk_n
- 
- static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
- {
-+	const char *name = of_get_property(np, "label", NULL);
- 	const __be32 *_id = of_get_property(np, "reg", NULL);
- 	struct device_node *pcs_np;
- 	phy_interface_t phy_mode;
-@@ -4875,6 +4876,9 @@ static int mtk_add_mac(struct mtk_eth *e
- 						NETDEV_XDP_ACT_NDO_XMIT |
- 						NETDEV_XDP_ACT_NDO_XMIT_SG;
- 
-+	if (name)
-+		strlcpy(eth->netdev[id]->name, name, IFNAMSIZ);
-+
- 	return 0;
- 
- free_netdev: