ipq806x: ipq4019: dts: fix maximum cpu speed

Supported frequencies of all ipq40xx chips are 48, 200, 500 and 716.8 MHz.
Previous 666MHz setting was most likely related to instability of early
chips/boards made before mass production.

Signed-off-by: Roman Yeryomin <roman@advem.lv>

target/linux/ipq806x/files-4.9/arch/arm/boot/dts/qcom-ipq4019-fritz4040.dts

@@ -215,12 +215,3 @@
 		};
 	};
 };
-
-&cpu0_opp_table {
-	/delete-node/ opp@666000000;
-
-	opp@710000000 {
-		opp-hz = /bits/ 64 <710000000>;
-		clock-latency-ns = <256000>;
-	};
-};

target/linux/ipq806x/patches-4.9/864-06-dts-ipq4019-fix-max-cpu-speed.patch

@@ -0,0 +1,13 @@
+--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
+@@ -108,8 +108,8 @@
+ 			opp-hz = /bits/ 64 <500000000>;
+ 			clock-latency-ns = <256000>;
+ 		};
+-		opp@666000000 {
+-			opp-hz = /bits/ 64 <666000000>;
++		opp@716800000 {
++			opp-hz = /bits/ 64 <716800000>;
+ 			clock-latency-ns = <256000>;
+ 		};
+ 	};