arm64: dts: qcom: msm8916: move gpu opp table to gpu node

In msm8916.dtsi the GPU OPP table is defined under the root node,
whereas in msm8996.dtsi/sdm845.dtsi it is a subnode of the gpu device
(which makes it easier to find).

Move it to the gpu device node to make this consistent.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200514112754.148919-2-stephan@gerhold.netSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/msm8916.dtsi

@@ -358,17 +358,6 @@ opp-998400000 {
 		};
 	};
 
-	gpu_opp_table: gpu-opp-table {
-		compatible = "operating-points-v2";
-
-		opp-400000000 {
-			opp-hz = /bits/ 64 <400000000>;
-		};
-		opp-19200000 {
-			opp-hz = /bits/ 64 <19200000>;
-		};
-	};
-
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
@@ -989,6 +978,17 @@ gpu@1c00000 {
 			power-domains = <&gcc OXILI_GDSC>;
 			operating-points-v2 = <&gpu_opp_table>;
 			iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+
+			gpu_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-400000000 {
+					opp-hz = /bits/ 64 <400000000>;
+				};
+				opp-19200000 {
+					opp-hz = /bits/ 64 <19200000>;
+				};
+			};
 		};
 
 		mdss: mdss@1a00000 {