voice_thread.c ensure cpu gets re-boosted after Q_VOICE_STOP event

when the voice system is doing queued voice clips you can get a
voice_stop event which cancels the cpu boost
but the quiet count was not reset to 0
next clip may play unboosted causing stuttering

just boost unconditionally on Q_PLAY
it'll unboost after timeout if unneeded

Change-Id: Ib39df5d9f8a9e41299147a885048cf1361180dd6

apps/voice_thread.c

@@ -361,12 +361,11 @@ static enum voice_state voice_message(struct voice_thread_data *td)
     {
     case Q_VOICE_PLAY:
         LOGFQUEUE("voice < Q_VOICE_PLAY");
-        if (quiet_counter == 0)
-        {
-            /* Boost CPU now */
-            trigger_cpu_boost();
-        }
-        else
+
+        /* Boost CPU now */
+        trigger_cpu_boost();
+
+        if (quiet_counter != 0)
         {
             /* Stop any clip still playing */
             voice_stop_playback();