lantiq: kernel 4.14: fix vr9 reboot mask

We need to reset the GPHYs on reboot as well. Otherwise the bootloader
might have issues to reset/find the GPHYs.

Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/lantiq/files-4.14/arch/mips/boot/dts/vr9.dtsi

@@ -154,7 +154,7 @@
 
 				regmap = <&rcu0>;
 				offset = <0x10>;
-				mask = <0x40000000>;
+				mask = <0xe0000000>;
 			};
 		};
 	};