ARM: tegra: cardhu-a04: Add CPU Operating Performance Points

Utilize common Tegra30 CPU OPP table. CPU DVFS is available now on
Cardhu A04.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-cardhu-a04.dts

@@ -2,6 +2,8 @@
 /dts-v1/;
 
 #include "tegra30-cardhu.dtsi"
+#include "tegra30-cpu-opp.dtsi"
+#include "tegra30-cpu-opp-microvolt.dtsi"
 
 /* This dts file support the cardhu A04 and later versions of board */
 
@@ -127,4 +129,26 @@
 			nvidia,tegra-core-regulator;
 		};
 	};
+
+	cpus {
+		cpu0: cpu@0 {
+			cpu-supply = <&vddctrl_reg>;
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+
+		cpu@1 {
+			cpu-supply = <&vddctrl_reg>;
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+
+		cpu@2 {
+			cpu-supply = <&vddctrl_reg>;
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+
+		cpu@3 {
+			cpu-supply = <&vddctrl_reg>;
+			operating-points-v2 = <&cpu0_opp_table>;
+		};
+	};
 };