lantiq: modify vr9.dts to support vmmc

(required not-distributable firmware blob - dump it by yourself from original firmware)

Signed-off-by: Eddi De Pieri <eddi@depieri.net>

(cherry picked from commit 8d924d43c0ea6839a3a33e54982e8da48b736001)

Modified after cherry-pick:
compatible attribute

Signed-off-by: Stefan Koch <stefan.koch10@gmail.com>

target/linux/lantiq/dts/vr9.dtsi

@@ -75,6 +75,14 @@
 			reg = <0x106a00 0x200>;
 		};
 
+		vmmc@107000 {
+			status = "disabled";
+			compatible = "lantiq,vmmc-xway";
+			reg = <0x103000 0x400>;
+			interrupt-parent = <&icu0>;
+			interrupts = <150 151 152 153 154 155>;
+		};
+
 		rcu0: rcu@203000 {
 			compatible = "lantiq,rcu-xrx200";
 			reg = <0x203000 0x1000>;