ramips: fix NETGEAR R6260 EEPROM offset

The EEPROM offset for the NETGEAR R6260 is incorrect, thus no valid
calibration data is used.

Fix this only for the NETGEAR R6260, as it's currently unknown whether
or not other boards are affected.

Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/ramips/dts/mt7621_netgear_r6260.dts

@@ -23,3 +23,11 @@
 &led_wifi {
 	label = "r6260:green:wifi";
 };
+
+&wifi2 {
+	mediatek,mtd-eeprom = <&factory 0x20000>;
+};
+
+&wifi5 {
+	mediatek,mtd-eeprom = <&factory 0x28000>;
+};

target/linux/ramips/dts/mt7621_netgear_r6350.dts

@@ -23,3 +23,11 @@
 &led_wifi {
 	label = "r6350:green:wifi";
 };
+
+&wifi2 {
+	mediatek,mtd-eeprom = <&factory 0x0>;
+};
+
+&wifi5 {
+	mediatek,mtd-eeprom = <&factory 0x8000>;
+};

target/linux/ramips/dts/mt7621_netgear_r6850.dts

@@ -23,3 +23,11 @@
 &led_wifi {
 	label = "r6850:green:wifi";
 };
+
+&wifi2 {
+	mediatek,mtd-eeprom = <&factory 0x0>;
+};
+
+&wifi5 {
+	mediatek,mtd-eeprom = <&factory 0x8000>;
+};

target/linux/ramips/dts/mt7621_netgear_sercomm_chj.dtsi

@@ -78,19 +78,17 @@
 };
 
 &pcie0 {
-	wifi@0,0 {
+	wifi5: wifi@0,0 {
 		compatible = "mediatek,mt76";
 		reg = <0x0 0 0 0 0>;
-		mediatek,mtd-eeprom = <&factory 0x8000>;
 		ieee80211-freq-limit = <5000000 6000000>;
 	};
 };
 
 &pcie1 {
-	wifi@0,0 {
+	wifi2: wifi@0,0 {
 		compatible = "mediatek,mt76";
 		reg = <0x0 0 0 0 0>;
-		mediatek,mtd-eeprom = <&factory 0x0>;
 		ieee80211-freq-limit = <2400000 2500000>;
 	};
 };