Add systrace tag for thermal

Bug: 218939123
Test: build
Change-Id: I67912e91724e197132ae07e8ce55c60ec36b18a6
diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp
index 6459443..7aee795 100644
--- a/cmds/atrace/atrace.cpp
+++ b/cmds/atrace/atrace.cpp
@@ -245,7 +245,7 @@
         { OPT,      "events/ion/ion_stat/enable" },
         { OPT,      "events/gpu_mem/gpu_mem_total/enable" },
     } },
-    { "thermal",  "Thermal event", 0, {
+    { "thermal",  "Thermal event", ATRACE_TAG_THERMAL, {
         { REQ,      "events/thermal/thermal_temperature/enable" },
         { OPT,      "events/thermal/cdev_update/enable" },
     } },