Simulate finger touch with virtual fingerprint hal

Bug: 277780272
Test: atest BiometricsE2eTests
Change-Id: I9330b3eeca52321c59d0af63782d38cd3b5f901f
diff --git a/biometrics/fingerprint/aidl/default/include/Fingerprint.h b/biometrics/fingerprint/aidl/default/include/Fingerprint.h
index fc4fb8d..2bd66d4 100644
--- a/biometrics/fingerprint/aidl/default/include/Fingerprint.h
+++ b/biometrics/fingerprint/aidl/default/include/Fingerprint.h
@@ -43,6 +43,7 @@
   private:
     void resetConfigToDefault();
     void onHelp(int);
+    void onSimFingerDown();
 
     std::unique_ptr<FakeFingerprintEngine> mEngine;
     WorkerThread mWorker;