Trigger watchdog only if operation is not complete

Test: N/A
Bug: 289215372
Change-Id: I64ace188a46f41a35fff5e315ef32f06a5060d9a

services/core/java/com/android/server/biometrics/sensors/BiometricScheduler.java

@@ -580,7 +580,7 @@ public class BiometricScheduler {
         }
         final BiometricSchedulerOperation operation = mCurrentOperation;
         mHandler.postDelayed(() -> {
-            if (operation == mCurrentOperation) {
+            if (operation == mCurrentOperation && !operation.isFinished()) {
                 Counter.logIncrement("biometric.value_scheduler_watchdog_triggered_count");
                 clearScheduler();
             }