Enabling 'cinder_use_multipath' if cinder multipath is enabled

Currently,'cinder_use_multipath' parameters' is disabled in glance-api.conf,
when cinder multipath is enabled.

Enabling 'cinder_use_multipath' when multipath is enabled.

Change-Id: I03e042b9684e6bdd8c277066776df23d2eb84ecd
(cherry picked from commit 4535e0f)
(cherry picked from commit 853f4a1)

deployment/glance/glance-api-container-puppet.yaml

@@ -501,6 +501,11 @@ outputs:
               glance::backend::cinder::cinder_store_user_name: 'glance'
               glance::backend::cinder::cinder_store_password: {get_param: GlancePassword}
             - {}
+          -
+            if:
+            - cinder_multipathd_enabled
+            - glance::backend::cinder::cinder_use_multipath: true
+            - {}
           -
             if:
             - glance_cache_enabled