Adjust tempest_ext.conf

Change-Id: Id7e0964e3c1b9f5a387dbbf02b42314c8d285075
diff --git a/tempest/tempest_ext.conf b/tempest/tempest_ext.conf
index 9d72500..9667a5e 100644
--- a/tempest/tempest_ext.conf
+++ b/tempest/tempest_ext.conf
@@ -83,11 +83,17 @@
 endpoint_type = publicURL
 
 [volume]
-min_microversion = 3.0
 max_microversion = latest
 build_timeout = 120
 storage_protocol = ceph
 endpoint_type = publicURL
+catalog_type = volumev3
+
+[service-clients]
+http_timeout = 100
+
+[service_available]
+cinder = True
 
 [volume-feature-enabled]
 api_v3 = true