Make virtual fingerprint Hal as a lazy Hal

so that the Hal service can start dynamically as needed
by vts test and others

Bug: 262630839
Test: atest VtsHalBiometricsFingerprintTargetTest:IFingerprint/Fingerprint
Change-Id: I58dfa3b49bade3bbd89c3a8f6cd884c632e9eae4
diff --git a/biometrics/fingerprint/aidl/default/fingerprint-example.rc b/biometrics/fingerprint/aidl/default/fingerprint-example.rc
index 10db00d..80985e8 100644
--- a/biometrics/fingerprint/aidl/default/fingerprint-example.rc
+++ b/biometrics/fingerprint/aidl/default/fingerprint-example.rc
@@ -2,8 +2,7 @@
     class hal
     user nobody
     group nobody
+    interface aidl android.hardware.biometrics.fingerprint.IFingerprint/virtual
+    oneshot
     disabled
-on property:ro.vendor.fingerprint_virtual_hal_start=true
-    enable vendor.fingerprint-example
-on property:persist.vendor.fingerprint.virtual.type=*
-    enable vendor.fingerprint-example
+