Use Unique SCST Group names in SCST cinder helper driver

[sreedhar]

Currently, while setting up GROUPS under targets in scst.conf (SCST configuration), we are using the Initiator IQN as the group name. When we have multiple targets and we want to connect LUN's from these multiple targets to the same initiator, we are using the same GROUP name in all the Target sections.
While we parse the SCST configuration and search if an initiator GROUP is present, there is an ambiguity since the same GROUP name can be present under multiple targets.
It would be good to provide a unique group name by prepending the GROUP name with the target name. So the GROUP name will be "Target name+Initiator IQN"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/159156

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/159156
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=cb5e6b35b0900fd950c8bbbcee1794b0ee5f75e7
Submitter: Jenkins
Branch: master

commit cb5e6b35b0900fd950c8bbbcee1794b0ee5f75e7
Author: nikeshmahalka <email address hidden>
Date: Wed Feb 25 20:44:13 2015 +0530

    Use Unique SCST Group names in SCST cinder helper driver.

    Currently, while setting up GROUPS under targets in scst.conf,
    we are using the Initiator IQN as the group name. When we have
    multiple targets and we want to connect LUN's from these multiple
    targets to the same initiator, we are using the same GROUP name in
    all the Target sections.

    It would be good to provide a unique group name by prepending the
    GROUP name with the target name. So the GROUP name will be
    "Target name+Initiator IQN".

    Change-Id: Ia0fbab18f792e602e1f4dae6f9ca0e607d0cfde3
    Closes-Bug: #1424973