Support configuration reset and dump

Bug: 294254230
Test: atest android.hardware.biometrics.face.* -c
      adb shell cmd android.hardware.biometrics.face.IFace/virtual resetconfig
      adb shell dumpsys face
Change-Id: I6dc5657104da103860cca133beba21e1b10cb423
diff --git a/biometrics/face/aidl/default/FakeFaceEngine.cpp b/biometrics/face/aidl/default/FakeFaceEngine.cpp
index bdc13fd..bf75874 100644
--- a/biometrics/face/aidl/default/FakeFaceEngine.cpp
+++ b/biometrics/face/aidl/default/FakeFaceEngine.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#undef LOG_TAG
 #define LOG_TAG "FaceVirtualHalEngine"
 
 #include "FakeFaceEngine.h"