Fix the Thermal AIDL example and VTS test

The AIDL proxy objects can't be compared directly but their internal IBinder

Bug: b/264224315
Test: atest VtsHalThermalTargetTest
Change-Id: Icf6174a0ba79fa5efeaec7778d27c18d957cd88d
diff --git a/thermal/aidl/default/main.cpp b/thermal/aidl/default/main.cpp
index 61d8ad0..9f4ddb8 100644
--- a/thermal/aidl/default/main.cpp
+++ b/thermal/aidl/default/main.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "thermal_service_example"
+
 #include "Thermal.h"
 
 #include <android-base/logging.h>