aout: allow frequency up to 352.8 kHz

This is the frequency for SACD Digital eXtreme Definition.

Higher sample rates exist, notably DSD's 2822.4kH but that is not PCM
and the bitrate computation would really risk 31-bits integer overflow.

modules/audio_output/amem.c

@@ -43,7 +43,7 @@ vlc_module_begin ()
         change_private()
     add_integer ("amem-rate", 44100,
                  N_("Sample rate"), N_("Sample rate"), false)
-        change_integer_range (1, 192000)
+        change_integer_range (1, 352800)
         change_private()
     add_integer ("amem-channels", 2,
                  N_("Channels count"), N_("Channels count"), false)

src/audio_output/dec.c

@@ -52,7 +52,7 @@ int aout_DecNew( audio_output_t *p_aout,
         return -1;
     }
 
-    if( p_format->i_rate > 192000 )
+    if( p_format->i_rate > 352800 )
     {
         msg_Err( p_aout, "excessive audio sample frequency (%u)",
                  p_format->i_rate );