arm64: dts: qcom: pmr735a: stop depending on thermal_zones label

Most of SoC device trees do not provide the thermal_zones label. Thus
stop depending on it and use the full path to the thermal zones nodes.

Fixes: 7a3544e5 ("arm64: dts: qcom: pmr735a: Add temp-alarm support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220226205035.1826360-6-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/pmr735a.dtsi

@@ -32,23 +32,25 @@ pmr735a_gpios: gpio@8800 {
 	};
 };
 
-&thermal_zones {
-	pmr735a_thermal: pmr735a-thermal {
-		polling-delay-passive = <100>;
-		polling-delay = <0>;
-		thermal-sensors = <&pmr735a_temp_alarm>;
+/ {
+	thermal-zones {
+		pmr735a_thermal: pmr735a-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&pmr735a_temp_alarm>;
 
-		trips {
-			pmr735a_trip0: trip0 {
-				temperature = <95000>;
-				hysteresis = <0>;
-				type = "passive";
-			};
+			trips {
+				pmr735a_trip0: trip0 {
+					temperature = <95000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
 
-			pmr735a_crit: pmr735a-crit {
-				temperature = <115000>;
-				hysteresis = <0>;
-				type = "critical";
+				pmr735a_crit: pmr735a-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
 			};
 		};
 	};