Making opt names consistent bug fix broke dothill, hpmsa and lenovo drivers

Fix proposed to branch: master
Review: https://review.openstack.org/222731

Fix proposed to branch: master
Review: https://review.openstack.org/222733

Fix proposed to branch: master
Review: https://review.openstack.org/222736

Reviewed: https://review.openstack.org/222731
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=a93c0b727a239d0d4ab5f4b094ea0df6a83623fb
Submitter: Jenkins
Branch: master

commit a93c0b727a239d0d4ab5f4b094ea0df6a83623fb
Author: Walter A. Boring IV <email address hidden>
Date: Fri Sep 11 18:32:29 2015 +0000

    Dothill fix options access

    This patch fixes invalid access to the options that live
    in the dothill_common. They were recently renamed from
    common_opt to common_opts, but the drivers weren't updated.

    Change-Id: Iff411239a079f76c874b7b11f01a21f5f7d9f12e
    Partial-Bug: 1494877

Reviewed: https://review.openstack.org/222736
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=0957af28127bf9d8acd803c5d90f43f387b8924a
Submitter: Jenkins
Branch: master

commit 0957af28127bf9d8acd803c5d90f43f387b8924a
Author: Walter A. Boring IV <email address hidden>
Date: Fri Sep 11 18:37:53 2015 +0000

    HPMSA fix access to common options

    This patch fixes access to the options defined in
    hpmsa_common. They were recently renamed from common_opt
    to common_opts, but the drivers weren't updated.

    Change-Id: I381e61c8e44454f29bc6ff6f1a5a82bbc8ab9436
    Partial-Bug: 1494877

Reviewed: https://review.openstack.org/222733
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=49fec70e991cd01eacf7ecf94614be96deb5d19d
Submitter: Jenkins
Branch: master

commit 49fec70e991cd01eacf7ecf94614be96deb5d19d
Author: Walter A. Boring IV <email address hidden>
Date: Fri Sep 11 18:35:19 2015 +0000

    Lenovo driver fix access to common opts

    This patch fixes access to the lenovo_common options.
    They were recently renamed from common_opt to common_opts,
    but the drivers weren't updated.

    Change-Id: I63583394d58cb8fc791787df35ed04d30113fafe
    Partial-Bug: 1494877

In recent merge of "https://github.com/openstack/cinder/commit/1fd83e14d28e18569af63ee2882dc174eacec3ac" , for making opt names consistent, common_opt and iscsi_opt were changed to common_opts and iscsi_opts in dothill_common.py, hpmsa_common.py and lenovo_common.py but same was not changed in dothill_fc.py, dothill_iscsi.py, hpmsa_fc.py, hpmsa_iscsi.py,
lenovo_fc.py and lenovo_iscsi.py.

Fix for this have been merged now.
Thanks to all reviewers.