paaudio: increase default latency to 46ms

This is a patch to improve the pulseaudio playback experience.
Asking pulseaudio for a playback latency of 15ms is quite
demanding. Increase this to 46ms. The total playback latency
now is 31ms larger. One of the next patches will reduce the
total playback latency again by more than 46ms.

Here is a quote from the PulseAudio Latency Control
documentation: 'For the sake of (...) drop-out safety always
make sure to pick the highest latency possible that fulfills
your needs.'

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20220301191311.26695-5-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

audio/paaudio.c

@@ -744,7 +744,7 @@ static int qpa_validate_per_direction_opts(Audiodev *dev,
 {
     if (!pdo->has_latency) {
         pdo->has_latency = true;
-        pdo->latency = 15000;
+        pdo->latency = 46440;
     }
     return 1;
 }