ramips: fix WHR-600D eeprom dt property

Fix the PCIe 5GHz wireless by using the ralink mtd-eeprom property as
this board have a RT5592 and uses the rt2x00 driver. The mediathek
device tree bindings do not work here.

Fixes: FS#691

Fixes: d8dd207ea6 ("ramips: use the ralink,mtd-eeprom device tree property")
Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/ramips/dts/WHR-600D.dts

@@ -148,10 +148,10 @@
 	status = "okay";
 
 	pcie-bridge {
-		wifi@1814,3091 {
-			compatible = "pci1814,3091";
+		wifi@1814,5592 {
+			compatible = "pci1814,5592";
 			reg = <0x0000 0 0 0 0>;
-			mediatek,mtd-eeprom = <&factory 0x8000>;
+			ralink,mtd-eeprom = <&factory 0x8000>;
 		};
 	};
 };