rockchip: increase volt of 1.5ghz to 1.5v for stability (#5703)

target/linux/rockchip/patches-5.4/003-arm64-dts-rockchip-add-more-cpu-operating-points-for.patch

@@ -31,7 +31,7 @@ Signed-off-by: Leonidas P. Papadakos <papadakospan@gmail.com>
 +		};
 +		opp-1512000000 {
 +			opp-hz = /bits/ 64 <1512000000>;
-+			opp-microvolt = <1400000>;
++			opp-microvolt = <1450000>;
 +			clock-latency-ns = <40000>;
 +		};
  	};