Catch STHAL factory exceptions

The ST HAL factory may throw on back-to-back HAL process deaths.

Loop until the factory successfully creates.

Bug: 271058477
Test: AlwaysOnHotwordDetectorTest
Test: Successful attach on boot, audioserver death
Change-Id: Ifeb84d604cd0330cd0f9f2e11aa8cb6e14bc7b26

services/voiceinteraction/java/com/android/server/soundtrigger_middleware/SoundTriggerModule.java

@@ -168,9 +168,18 @@ class SoundTriggerModule implements IBinder.DeathRecipient, ISoundTriggerHal.Glo
      * Attached to the HAL service via factory.
      */
     private void attachToHal() {
-        mHalService = new SoundTriggerHalEnforcer(
-                new SoundTriggerHalWatchdog(
-                    new SoundTriggerDuplicateModelHandler(mHalFactory.create())));
+        mHalService = null;
+        while (mHalService == null) {
+            try {
+                mHalService = new SoundTriggerHalEnforcer(
+                        new SoundTriggerHalWatchdog(
+                            new SoundTriggerDuplicateModelHandler(mHalFactory.create())));
+            } catch (RuntimeException e) {
+                if (!(e.getCause() instanceof RemoteException)) {
+                    throw e;
+                }
+            }
+        }
         mHalService.linkToDeath(this);
         mHalService.registerCallback(this);
         mProperties = mHalService.getProperties();