Turn off oslo_conccurrency locking in volume driver

Since the volume driver is only accessed through one process, we
probably don't need concurrency locking.

Change-Id: I50f0cb4a7ef92a5fefe5fafb9f3ddadf0bf796b0
Closes-Bug: #1473535

docker/common/cinder-app/cinder-base/config-cinder.sh

@@ -131,3 +131,17 @@ crudini --set $cfg \
         keystone_authtoken \
         admin_password \
         "${CINDER_KEYSTONE_PASSWORD}"
+
+
+# oslo_concurrency
+crudini --set $cfg \
+    oslo_concurrency \
+    disable_process_locking \
+    True
+
+mkdir -p /var/lib/cinder/locks
+
+crudini --set $cfg \
+    oslo_concurrency \
+    lock_path \
+    /var/lib/cinder/locks