mediatek: wavlink wl-wn536ax6 rev a: change nvmem layout for MAC addresses

Currently the WAN MAC address is read from the first (LAN) MAC address in the "HW" partition and
then incremented by 1 instead of being read directly from the second MAC address.

Change to reading the two MAC addresses (LAN/WAN) directly from "Factory" partition.

Fixes: 1748ce8295 ("mediatek: add support for WAVLINK WL-WN536AX6 Rev a")
Signed-off-by: Ryan Leung <untilscour@protonmail.com>
Link: https://github.com/openwrt/openwrt/pull/23682
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>

target/linux/mediatek/dts/mt7986a-wavlink-wl-wn536ax6-a.dts

@@ -123,7 +123,7 @@
 		phy-mode = "2500base-x";
 
 		nvmem-cell-names = "mac-address";
-		nvmem-cells = <&macaddr_hw_44e 0>;
+		nvmem-cells = <&macaddr_factory_3fff4>;
 
 		fixed-link {
 			full-duplex;
@@ -140,7 +140,7 @@
 		phy-handle = <&phy6>;
 
 		nvmem-cell-names = "mac-address";
-		nvmem-cells = <&macaddr_hw_44e 1>;
+		nvmem-cells = <&macaddr_factory_3fffa>;
 	};
 
 	mdio-bus {
@@ -150,7 +150,7 @@
 		/* MaxLinear GPY211C 2.5G PHY */
 		phy6: phy@6 {
 			/*
-			 * Force the ID here as the PHY only reports it's
+			 * Force the ID here as the PHY only reports its
 			 * (C45) ID correctly after a reset (before resetting
 			 * it reports 0xfffffff, which causes only the genphy
 			 * driver to match).
@@ -320,6 +320,14 @@
 					eeprom_factory_0: eeprom@0 {
 						reg = <0x0 0x1000>;
 					};
+
+					macaddr_factory_3fff4: macaddr@3fff4 {
+						reg = <0x3fff4 0x6>;
+					};
+
+					macaddr_factory_3fffa: macaddr@3fffa {
+						reg = <0x3fffa 0x6>;
+					};
 				};
 			};
 
@@ -338,18 +346,6 @@
 				label = "HW";
 				reg = <0x4580000 0x80000>;
 				read-only;
-
-				nvmem-layout {
-					compatible = "fixed-layout";
-					#address-cells = <1>;
-					#size-cells = <1>;
-
-					macaddr_hw_44e: macaddr@44e {
-						compatible = "mac-base";
-						reg = <0x44e 0x11>;
-						#nvmem-cell-cells = <1>;
-					};
-				};
 			};
 		};
 	};