Updated openstack/openstack
Project: openstack/python-novaclient  84ccbf3681b0793868eb471394baef3d14add397

novaclient: Convert v3 boot command with v2.1 spec (bdm)

The v3 client was written assuming that some arguments
would be renamed for better consistency.   V2.1 will follow
the v2 syntax,  so we need to convert the client back to
that.

This change fixes the block-device-mapping element.

Change-Id: Id91ad05aa86b32755e0b06be5f0e50cc1e83cb15