Stop using absolute names for defined resource types

Since Puppet 4, names are always absolute. We already replaced usage of
absolute names for class inclusion, so can do the same for defined
resource types.

Change-Id: Ic70ab3b52fe987189452b6068540e98e74861b41

manifests/db/mysql.pp

@@ -45,7 +45,7 @@ class mistral::db::mysql(
 
   include mistral::deps
 
-  ::openstacklib::db::mysql { 'mistral':
+  openstacklib::db::mysql { 'mistral':
     user          => $user,
     password      => $password,
     dbname        => $dbname,

manifests/db/postgresql.pp

@@ -34,7 +34,7 @@ class mistral::db::postgresql(
 
   include mistral::deps
 
-  ::openstacklib::db::postgresql { 'mistral':
+  openstacklib::db::postgresql { 'mistral':
     password   => $password,
     dbname     => $dbname,
     user       => $user,

manifests/wsgi/apache.pp

@@ -166,7 +166,7 @@ class mistral::wsgi::apache (
 
   Anchor['mistral::install::end'] -> Class['apache']
 
-  ::openstacklib::wsgi::apache { 'mistral_wsgi':
+  openstacklib::wsgi::apache { 'mistral_wsgi':
     bind_host                   => $bind_host,
     bind_port                   => $port,
     group                       => $::mistral::params::group,