aout: also move output queue when resuming

Previously, most of the audio samples in the left in the output buffer
during pause where dropped out on resume. This should fix it.

src/audio_output/dec.c

@@ -231,10 +231,8 @@ void aout_DecChangePause( audio_output_t *p_aout, aout_input_t *p_input, bool b_
 
     if( i_duration != 0 )
     {
-        for( aout_buffer_t *p = p_input->fifo.p_first; p != NULL; p = p->p_next )
-        {
-            p->i_pts += i_duration;
-        }
+        aout_FifoMoveDates( &p_input->fifo, i_duration );
+        aout_FifoMoveDates( &p_aout->fifo, i_duration );
     }
     aout_OutputPause( p_aout, b_paused, i_date );
     aout_unlock( p_aout );