arm64: dts: rockchip: rk3308: Change cpu opp-microvolt form one entry to three

Single entry is for target voltage and three entries are for
<target min max> voltages. Change cpu opp-microvolt form one entry to
three entries and set maximum acceptable voltage to a high value so that
regulator device can supply multiple consumers at the same time.

Change-Id: I72e2efb9828432ee29773c8e1939a59062127ff7
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>

Author: finley1226

arch/arm64/boot/dts/rockchip/rk3308.dtsi

@@ -82,28 +82,28 @@
 
 		opp-408000000 {
 			opp-hz = /bits/ 64 <408000000>;
-			opp-microvolt = <950000>;
+			opp-microvolt = <950000 950000 1340000>;
 			clock-latency-ns = <40000>;
 			opp-suspend;
 		};
 		opp-600000000 {
 			opp-hz = /bits/ 64 <600000000>;
-			opp-microvolt = <950000>;
+			opp-microvolt = <950000 950000 1340000>;
 			clock-latency-ns = <40000>;
 		};
 		opp-816000000 {
 			opp-hz = /bits/ 64 <816000000>;
-			opp-microvolt = <1050000>;
+			opp-microvolt = <1050000 1050000 1340000>;
 			clock-latency-ns = <40000>;
 		};
 		opp-1008000000 {
 			opp-hz = /bits/ 64 <1008000000>;
-			opp-microvolt = <1100000>;
+			opp-microvolt = <1100000 1100000 1340000>;
 			clock-latency-ns = <40000>;
 		};
 		opp-1200000000 {
 			opp-hz = /bits/ 64 <1200000000>;
-			opp-microvolt = <1175000>;
+			opp-microvolt = <1175000 1175000 1340000>;
 			clock-latency-ns = <40000>;
 		};
 	};