lantiq: fix network port GPIO settings for Fritzbox 3390

There are forum reports that 2 LAN ports are not working, the
GPIO settings are adjusted to fix the problem.
Signed-off-by: NDaniel Kestrel <kestrel1974@t-online.de>

target/linux/lantiq/files/arch/mips/boot/dts/lantiq/vr9_avm_fritz3390.dts

@@ -149,12 +149,12 @@
 &gswip_mdio {
 	phy0: ethernet-phy@0 {
 		reg = <0x0>;
-		gpios = <&gpio 32 GPIO_ACTIVE_HIGH>;
+		gpios = <&gpio 32 GPIO_ACTIVE_LOW>;
 	};
 
 	phy1: ethernet-phy@1 {
 		reg = <0x1>;
-		gpios = <&gpio 44 GPIO_ACTIVE_HIGH>;
+		gpios = <&gpio 44 GPIO_ACTIVE_LOW>;
 	};
 
 	phy11: ethernet-phy@11 {