Add toString to ST recog event types

Generate toString for better logging.

Bug: 281139493
Fixes: 281338538
Test: Compiles
Test: soundtrigger middleware dumpsys
Change-Id: Icd66c2874d2702d44bb8acc90fb5944dccebba47

media/aidl/android/media/soundtrigger_middleware/PhraseRecognitionEventSys.aidl

@@ -21,6 +21,7 @@ import android.media.soundtrigger.PhraseRecognitionEvent;
  * Wrapper to android.media.soundtrigger.RecognitionEvent providing additional fields used by the
  * framework.
  */
+@JavaDerive(equals = true, toString = true)
 parcelable PhraseRecognitionEventSys {
 
     PhraseRecognitionEvent phraseRecognitionEvent;

media/aidl/android/media/soundtrigger_middleware/RecognitionEventSys.aidl

@@ -21,6 +21,7 @@ import android.media.soundtrigger.RecognitionEvent;
  * Wrapper to android.media.soundtrigger.RecognitionEvent providing additional fields used by the
  * framework.
  */
+@JavaDerive(equals = true, toString = true)
 parcelable RecognitionEventSys {
 
     RecognitionEvent recognitionEvent;