usbredir: request libusb1 directly

Also, fix the website there, and tidy up the spice-gtk derivation, which
makes use of libusb1 too.

pkgs/development/libraries/spice-gtk/default.nix

@@ -1,35 +1,36 @@
 { stdenv
 , fetchurl
-, pkgconfig
+, acl
+, cyrus_sasl
+, docbook_xsl
+, epoxy
+, gettext
+, gobject-introspection
+, gst_all_1
+, gtk-doc
+, gtk3
+, json-glib
+, libcacard
+, libdrm
+, libjpeg_turbo
+, libopus
+, libsoup
+, libusb1
+, lz4
 , meson
 , ninja
+, openssl
+, perl
+, phodav
+, pixman
+, pkgconfig
+, polkit
 , python3
 , spice-protocol
-, gettext
-, openssl
-, pixman
-, gobject-introspection
-, libjpeg_turbo
-, zlib
-, cyrus_sasl
 , usbredir
-, libsoup
-, polkit
-, acl
 , usbutils
 , vala
-, gtk3
-, epoxy
-, libdrm
-, gst_all_1
-, phodav
-, libopus
-, gtk-doc
-, json-glib
-, lz4
-, libcacard
-, perl
-, docbook_xsl
+, zlib
 , withPolkit ? true
 }:
 
@@ -99,9 +100,10 @@ stdenv.mkDerivation rec {
     libcacard
     libdrm
     libjpeg_turbo
+    libopus
+    libusb1
     lz4
     openssl
-    libopus
     phodav
     pixman
     spice-protocol