arm64: dts: ls1088a: Move cpu_thermal out of bus node

Move cpu_thermal node from soc node to root node.

cpu_thermal node does not have any register properties and thus
shouldn't be placed on the bus.

This fixes the following build warnings with W=1:

arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dtb: Warning (simple_bus_reg): Node /soc/thermal-zones missing or empty reg/ranges property
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi

@@ -158,6 +158,44 @@ its: gic-its@6020000 {
 		};
 	};
 
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <5000>;
+			thermal-sensors = <&tmu 0>;
+
+			trips {
+				cpu_alert: cpu-alert {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cpu_crit: cpu-crit {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert>;
+					cooling-device =
+						<&cpu0 THERMAL_NO_LIMIT
+						THERMAL_NO_LIMIT>;
+				};
+
+				map1 {
+					trip = <&cpu_alert>;
+					cooling-device =
+						<&cpu4 THERMAL_NO_LIMIT
+						THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <1 13 IRQ_TYPE_LEVEL_LOW>,/* Physical Secure PPI */
@@ -315,44 +353,6 @@ tmu: tmu@1f80000 {
 			#thermal-sensor-cells = <1>;
 		};
 
-		thermal-zones {
-			cpu_thermal: cpu-thermal {
-				polling-delay-passive = <1000>;
-				polling-delay = <5000>;
-				thermal-sensors = <&tmu 0>;
-
-				trips {
-					cpu_alert: cpu-alert {
-						temperature = <85000>;
-						hysteresis = <2000>;
-						type = "passive";
-					};
-
-					cpu_crit: cpu-crit {
-						temperature = <95000>;
-						hysteresis = <2000>;
-						type = "critical";
-					};
-				};
-
-				cooling-maps {
-					map0 {
-						trip = <&cpu_alert>;
-						cooling-device =
-							<&cpu0 THERMAL_NO_LIMIT
-							THERMAL_NO_LIMIT>;
-					};
-
-					map1 {
-						trip = <&cpu_alert>;
-						cooling-device =
-							<&cpu4 THERMAL_NO_LIMIT
-							THERMAL_NO_LIMIT>;
-					};
-				};
-			};
-		};
-
 		duart0: serial@21c0500 {
 			compatible = "fsl,ns16550", "ns16550a";
 			reg = <0x0 0x21c0500 0x0 0x100>;