Need to create initiator id if it doesn't exist on the array for the VMAX driver

[Xing Yang]

This problem was discovered in a customer's environment. If the initiator id (hardware id SMI-S instance) does not exist on the array, the attach volume operation will fail. We need to create it if it doesn't exist.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/170689

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/170689
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=d36ac8277dfe26e18ec7fdd6ebb782fd83df38d5
Submitter: Jenkins
Branch: master

commit d36ac8277dfe26e18ec7fdd6ebb782fd83df38d5
Author: Xing Yang <email address hidden>
Date: Sat Apr 4 18:25:48 2015 -0400

    Create initiator id if not exist in VMAX driver

    This problem was discovered in a customer's environment. If the
    initiator id (hardware id SMI-S instance) does not exist on the
    array, the attach volume operation will fail. In this patch,
    the initiator id will be created if it doesn't exist.

    Change-Id: I868118528d831a9f49081a6393e64eb7a414b36f
    Closes-Bug: #1440427