Fix name extention from glance.yaml to glance.yml

Change-Id: Ibe9c2fb7bfbdfe974dad08ed65fa477badc2f881
diff --git a/metadata/service/tempest/services/manila/glance.yaml b/metadata/service/tempest/services/manila/glance.yml
similarity index 100%
rename from metadata/service/tempest/services/manila/glance.yaml
rename to metadata/service/tempest/services/manila/glance.yml