[mutter] Update libpipewire requirements

[Jonas Ådahl <jadahl src gnome org>]

commit c216397974a7d75a3fdb374becbc40a23ec878bf
Author: Jan Grulich <jgrulich redhat com>
Date:   Mon Aug 6 10:05:36 2018 +0200

    Update libpipewire requirements
    
    PipeWire 0.2.2+ now provides libpipewire-0.2 and not libpipewire-0.1 anymore

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index d91f12013..a404fa232 100644
--- a/configure.ac
+++ b/configure.ac
@@ -244,7 +244,7 @@ AC_ARG_ENABLE(remote-desktop,
   enable_remote_desktop=no
 )
 AS_IF([test "$enable_remote_desktop" = "yes"], [
-  MUTTER_PC_MODULES="$MUTTER_PC_MODULES libpipewire-0.1 >= 0.2.0"
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES libpipewire-0.2 >= 0.2.2"
   AC_DEFINE([HAVE_REMOTE_DESKTOP],[1], [Defined if screen cast and remote desktop support is enabled])
 ])
 AM_CONDITIONAL([HAVE_REMOTE_DESKTOP],[test "$enable_remote_desktop" = "yes"])