ARM: tegra: Add 500 MHz entry to Tegra30 memory OPP table

Extend memory OPPs with 500 MHz entry. This clock rate is used by ASUS
Transformer tablets.

Signed-off-by: Dmitry Osipenko <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

arch/arm/boot/dts/tegra30-peripherals-opp.dtsi

···
 			opp-supported-hw = <0x0008>;
 		};
 
+		opp-500000000-1200 {
+			opp-microvolt = <1200000 1200000 1350000>;
+			opp-hz = /bits/ 64 <500000000>;
+			opp-supported-hw = <0x0007>;
+		};
+
+		opp-500000000-1250 {
+			opp-microvolt = <1250000 1250000 1350000>;
+			opp-hz = /bits/ 64 <500000000>;
+			opp-supported-hw = <0x0008>;
+		};
+
 		opp-533000000-1200 {
 			opp-microvolt = <1200000 1200000 1350000>;
 			opp-hz = /bits/ 64 <533000000>;
···
 			opp-hz = /bits/ 64 <450000000>;
 			opp-supported-hw = <0x000F>;
 			opp-peak-kBps = <3600000>;
+		};
+
+		opp-500000000 {
+			opp-hz = /bits/ 64 <500000000>;
+			opp-supported-hw = <0x000F>;
+			opp-peak-kBps = <4000000>;
 		};
 
 		opp-533000000 {