dtsi:add sys temp node for Devon.

add back temp. front temp
for sys temp node.

Change-Id: I9359b5666d0e7173dd1367d5c808f4db04de67cb
Signed-off-by: xieqiong2 <xieqiong2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/2236022
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Wang Wang <wangwang1@lenovo.com>
Submit-Approved: Jira Key

qcom/khaje-devon-common-overlay.dtsi

@@ -164,6 +164,15 @@
 	};
 };
 
+&soc {
+        sys_temp_support {
+                compatible = "mmi,sys-temp";
+                mmi,temperature-names = "front_temp",
+                        "back_temp";
+                status = "ok"
+        };
+};
+
 &thermal_zones {
 	sdm-skin-therm-usr {
 		status = "disabled";