MIPS: ingenic: correct unit node address

Unit node addresses should not have leading 0x:

Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x"

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Paul Cercueil <[e-mail]>
Signed-off-by: Thomas Bogendoerfer <[e-mail]>

arch/mips/boot/dts/ingenic/jz4780.dtsi

···
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			eth0_addr: eth-mac-addr@0x22 {
+			eth0_addr: eth-mac-addr@22 {
 				reg = <0x22 0x6>;
 			};
 		};