ath79: fix tl-wa eth1 mac

This is using mac-base and so a 0 needs to be added.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17274
Signed-off-by: Robert Marko <robimarko@gmail.com>

target/linux/ath79/dts/ar7240_tplink_tl-wa.dtsi

@@ -17,7 +17,7 @@
 };
 
 &eth1 {
-	nvmem-cells = <&macaddr_uboot_1fc00>;
+	nvmem-cells = <&macaddr_uboot_1fc00 0>;
 	nvmem-cell-names = "mac-address";
 };