Thermal: change default implementation target as mock

Test: Build
Change-Id: I833fac3091645a7d95e71f0ef1ef4917f65be4f9
diff --git a/thermal/2.0/default/Android.bp b/thermal/2.0/default/Android.bp
index f620e6e..dab0d33 100644
--- a/thermal/2.0/default/Android.bp
+++ b/thermal/2.0/default/Android.bp
@@ -14,7 +14,7 @@
 // limitations under the License.
 
 cc_binary {
-    name: "android.hardware.thermal@2.0-service",
+    name: "android.hardware.thermal@2.0-service.mock",
     defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     vendor: true,