arm64: zynqmp: Add missing vc7_xin fixed clock to sc-vpk180-revA

Add missing vc7_xin fixed clock as clock input for some clock generators.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/4904f5e0aab8a0b0c2fcc1912be493d4185e6173.1725881047.git.michal.simek@amd.com
diff --git a/arch/arm/dts/zynqmp-sc-vpk180-revA.dtso b/arch/arm/dts/zynqmp-sc-vpk180-revA.dtso
index 1862593..ba54845 100644
--- a/arch/arm/dts/zynqmp-sc-vpk180-revA.dtso
+++ b/arch/arm/dts/zynqmp-sc-vpk180-revA.dtso
@@ -16,6 +16,12 @@
 &{/} {
 	compatible = "xlnx,zynqmp-sc-vpk180-revA", "xlnx,zynqmp-vpk180-revA",
 		     "xlnx,zynqmp-vpk180", "xlnx,zynqmp";
+
+	vc7_xin: vc7-xin {
+		compatible = "fixed-clock";
+		#clock-cells = <0x0>;
+		clock-frequency = <50000000>;
+	};
 };
 
 &i2c0 {