pmix: remote autogenerated file and update .gitignore

removed: opal/mca/pmix/pmix114/pmix/src/include/private/autogen/config.h.in

Author: ggouaillardet

.gitignore

@@ -302,9 +302,9 @@ opal/mca/hwloc/hwloc*/hwloc/include/private/autogen/config.h
 opal/mca/installdirs/config/install_dirs.h
 
 opal/mca/pmix/pmix114/pmix/include/pmix/autogen/config.h
+opal/mca/pmix/pmix114/pmix/src/include/private/autogen/config.h.in
 opal/mca/pmix/pmix114/pmix/src/include/private/autogen/config.h
 
-
 opal/tools/opal-checkpoint/opal-checkpoint
 opal/tools/opal-checkpoint/opal-checkpoint.1
 opal/tools/opal-restart/opal-restart