Reset mAcquiredReceived on udfps-fingerdown

Bug: 228981491
Test: manual
Change-Id: I1444de7ff7212e2af1a761b516b6138583881ca1

packages/SystemUI/src/com/android/systemui/biometrics/UdfpsController.java

@@ -384,6 +384,7 @@ public class UdfpsController implements DozeReceiver {
                     mActivePointerId = event.getPointerId(0);
                     mVelocityTracker.addMovement(event);
                     handled = true;
+                    mAcquiredReceived = false;
                 }
                 if ((withinSensorArea || fromUdfpsView) && shouldTryToDismissKeyguard()) {
                     Log.v(TAG, "onTouch | dismiss keyguard ACTION_DOWN");