ARM: dts: exynos: Align OPP table name with dt-schema

Device tree nodes should have hyphens instead of underscores.  This is
also expected by the bindings.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200903191438.12781-5-krzk@kernel.org

arch/arm/boot/dts/exynos4412.dtsi

@@ -76,7 +76,7 @@
 		};
 	};
 
-	cpu0_opp_table: opp_table0 {
+	cpu0_opp_table: opp-table0 {
 		compatible = "operating-points-v2";
 		opp-shared;
 
@@ -402,7 +402,7 @@
 			status = "disabled";
 		};
 
-		bus_dmc_opp_table: opp_table1 {
+		bus_dmc_opp_table: opp-table1 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -429,7 +429,7 @@
 			};
 		};
 
-		bus_acp_opp_table: opp_table2 {
+		bus_acp_opp_table: opp-table2 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -495,7 +495,7 @@
 			status = "disabled";
 		};
 
-		bus_leftbus_opp_table: opp_table3 {
+		bus_leftbus_opp_table: opp-table3 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -518,7 +518,7 @@
 			};
 		};
 
-		bus_display_opp_table: opp_table4 {
+		bus_display_opp_table: opp-table4 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -530,7 +530,7 @@
 			};
 		};
 
-		bus_fsys_opp_table: opp_table5 {
+		bus_fsys_opp_table: opp-table5 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -542,7 +542,7 @@
 			};
 		};
 
-		bus_peri_opp_table: opp_table6 {
+		bus_peri_opp_table: opp-table6 {
 			compatible = "operating-points-v2";
 			opp-shared;
 
@@ -734,7 +734,7 @@
 			  "pmu";
 	operating-points-v2 = <&gpu_opp_table>;
 
-	gpu_opp_table: opp_table {
+	gpu_opp_table: opp-table {
 		compatible = "operating-points-v2";
 
 		opp-160000000 {

arch/arm/boot/dts/exynos5250.dtsi

@@ -330,7 +330,7 @@
 			power-domains = <&pd_g3d>;
 			status = "disabled";
 
-			gpu_opp_table: gpu-opp-table {
+			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
 
 				opp-100000000 {