arm64: dts: msm8916: Add gpu thermal zone

Initialise the gpu thermal zone to export temperature to userspace.
Signed-off-by: NAmit Kucheria <amit.kucheria@linaro.org>
Acked-by: NAndy Gross <andy.gross@linaro.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

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

@@ -234,6 +234,26 @@
 			};
 		};
 
+		gpu-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+
+			thermal-sensors = <&tsens 2>;
+
+			trips {
+				gpu_alert: trip0 {
+					temperature = <75000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				gpu_crit: trip1 {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+
 	};
 
 	cpu_opp_table: cpu_opp_table {