Updated openstack/openstack
Project: openstack/sahara  a9341dfbdb09d53814b0a2311659b66d8b69ef2b

Correct parameter name in integration tests

To be uniform with the rest of the project:
s/volume_size/volumes_size/

Change-Id: I200f3f0c6866a0f3dcdc79acdf6aac58d4201c0b