arm64: zynqmp: Add operating points

Adding operating-points-v2 for zynqmp.
Signed-off-by: NShubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

arch/arm64/boot/dts/xilinx/zynqmp.dtsi

@@ -24,6 +24,7 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			device_type = "cpu";
 			enable-method = "psci";
+			operating-points-v2 = <&cpu_opp_table>;
 			reg = <0x0>;
 			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
@@ -33,6 +34,7 @@
 			device_type = "cpu";
 			enable-method = "psci";
 			reg = <0x1>;
+			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 
@@ -41,6 +43,7 @@
 			device_type = "cpu";
 			enable-method = "psci";
 			reg = <0x2>;
+			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 
@@ -49,6 +52,7 @@
 			device_type = "cpu";
 			enable-method = "psci";
 			reg = <0x3>;
+			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 
@@ -66,6 +70,31 @@
 		};
 	};
 
+	cpu_opp_table: cpu_opp_table {
+		compatible = "operating-points-v2";
+		opp-shared;
+		opp00 {
+			opp-hz = /bits/ 64 <1199999988>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <500000>;
+		};
+		opp01 {
+			opp-hz = /bits/ 64 <599999994>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <500000>;
+		};
+		opp02 {
+			opp-hz = /bits/ 64 <399999996>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <500000>;
+		};
+		opp03 {
+			opp-hz = /bits/ 64 <299999997>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <500000>;
+		};
+	};
+
 	pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupt-parent = <&gic>;