Make sure that manila share is created after share type

The pingtest template creates both default share type and
a share which should use this type. Explicit reference of
the share type should assure that the share is always created
when share type exists.

Change-Id: I756e6a8e477de8d0e46302dda26265ae482dd2e5
Closes-Bug: #1691853

ci/pingtests/scenario004-multinode.yaml

@@ -128,6 +128,8 @@ resources:
   manila_share:
     type: OS::Manila::Share
     properties:
+      name: pingtest
+      share_type: { get_resource: manila_share_type }
       share_protocol: CEPHFS
       size: 1