arm: dts: correct cpu opp point for rk3288

Change-Id: I7f0a6cfe68d91faee492ceac4fb2e02827205317
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>

Author: wzyy2

arch/arm/boot/dts/rk3288.dtsi

@@ -166,7 +166,7 @@
 			clock-latency-ns = <40000>;
 		};
 		opp@1416000000 {
-			opp-hz = /bits/ 64 <1296000000>;
+			opp-hz = /bits/ 64 <1416000000>;
 			opp-microvolt = <1200000>;
 			clock-latency-ns = <40000>;
 		};