arm64: dts: qcom: msm8996: Add gpu cooling support

Add cooling-cells property and cooling maps for the GPU.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Link: https://lore.kernel.org/r/Ku7mRZ_q2mYDZQ048IPlAc8VOVhH8N4uENhMI-JXxjeiZxjbRRs40ZJYwREb_ScgCvtQgtdl1VRjoDd7CR_8vCrbWVe8n3MwyB1S3VbSDis=@protonmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -972,6 +972,8 @@
 
 			status = "disabled";
 
+			#cooling-cells = <2>;
+
 			gpu_opp_table: opp-table {
 				compatible  ="operating-points-v2";
 
@@ -3209,7 +3211,14 @@
 				gpu1_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu1_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 				};
 			};
 		};
@@ -3224,7 +3233,14 @@
 				gpu2_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu2_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 				};
 			};
 		};