Updated openstack/openstack
Project: openstack/nova  c2dd9bca2bec67533fca3e39fa470f8dfa20cfb2

Use common get_instance function in v2 consoles extension

This patch use common get_instance function in v2 consoles extension.
That can make the instance behavior consistent with v2.1 api. Then
v2.1 and v2 can share same unittest.

Change-Id: Idf501be21178c3c97b1693e48d3fd13b97525299