pipewire: add fix for usb devices from master

https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1478

srcpkgs/pipewire/patches/fix-hotplug-usb-devices.patch

@@ -0,0 +1,31 @@
+From 0a5a4c046d10c0a53c7d2120a523cc28663ad73b Mon Sep 17 00:00:00 2001
+From: Wim Taymans <wtaymans@redhat.com>
+Date: Tue, 10 Aug 2021 11:23:48 +0200
+Subject: [PATCH] alsa: Free global state
+
+We need to do this or else newly plugged devices might not load.
+
+It does not seem to harm UCM config on my machine, so this reverts
+3d372424ccb96fd2b705c9ed94e76a82ad44e113
+
+See #1478
+---
+ spa/plugins/alsa/alsa-pcm.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/spa/plugins/alsa/alsa-pcm.c b/spa/plugins/alsa/alsa-pcm.c
+index 30fbbba6e..299bf03ff 100644
+--- a/spa/plugins/alsa/alsa-pcm.c
++++ b/spa/plugins/alsa/alsa-pcm.c
+@@ -20,6 +20,8 @@ int spa_alsa_init(struct state *state)
+ {
+ 	int err;
+ 
++	snd_config_update_free_global();
++
+ 	if (state->open_ucm) {
+ 		char card_name[64];
+ 		const char *alibpref = NULL;
+-- 
+GitLab
+

srcpkgs/pipewire/template

@@ -1,7 +1,7 @@
 # Template file for 'pipewire'
 pkgname=pipewire
 version=0.3.33
-revision=1
+revision=2
 build_style=meson
 configure_args="
  --auto-features=enabled