Reset mServiceDisabled when service dies

When we don't reset the state, if the service died while it was
disabled, future attempts to load models would fail.

Fixes: 171953855
Test: Verified basic sound trigger cases as well as recovery from
      STHAL and audioserver crashes.
Change-Id: I32929123aa936cbee3101ec0ef65c52dd28b240b

services/voiceinteraction/java/com/android/server/soundtrigger/SoundTriggerHelper.java

@@ -1038,6 +1038,7 @@ public class SoundTriggerHelper implements SoundTrigger.StatusListener {
             if (mModule != null) {
                 mModule.detach();
                 mModule = null;
+                mServiceDisabled = false;
             }
         }
     }