[mutter] Non-fast-forward update to branch akitouni/cvt-native-backend

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'akitouni/cvt-native-backend' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  70e09f0... build: check for cvt only when building the native backend 
  96f37f7... build: check for cvt only when building the native backend 

Commits added to the branch:

  fe0a394... build: check for cvt only when building the native backend