[UI] Incorrect applying settings for Cinder backend

[Artem Minasyan]

Steps to reproduce:
1. We create new Openstack enviroment with Fuel UI.
2. Fill field "name and release" press "next" buttom
3. Use default parameters for compute and networking pages.
4. Choose Ceph backend for Cinder.
5. Finish creating
6. Move to settings page and storage tab.

Expected result:
Only Ceph RBD for volumes (Cinder) is chosen.

Actual result:
Cinder LVM over iSCSI for volumes and Ceph RBD for volumes (Cinder) are chosen

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "291"
  build_id: "291"
  fuel-nailgun_sha: "b6dc9fe8b0e046dc116f1394e9a58887bdf6e91a"
  python-fuelclient_sha: "1d61ed2dbf2183f6c0f9dcd00a4a9ca23aeafaa5"
  fuel-agent_sha: "2f18b7596bc7da79d2f28c34f42620b2090d8a35"
  fuel-nailgun-agent_sha: "a33a58d378c117c0f509b0e7badc6f0910364154"
  astute_sha: "583d68b1cbac03a4f9b6bb9f15921fbbb38159ee"
  fuel-library_sha: "8f2f65f2ed17309d15575501b3d0d7edc41cfe60"
  fuel-ostf_sha: "e77627b0649c597307daa4e27e701ffa230308f0"
  fuel-mirror_sha: "31b9df814960ec69b644ca9b689dacec0c7e10a1"
  fuelmenu_sha: "680b720291ff577f4c058cee25f85e563c96312e"
  shotgun_sha: "a0bd06508067935f2ae9be2523ed0d1717b995ce"
  network-checker_sha: "a3534f8885246afb15609c54f91d3b23d599a5b1"
  fuel-upgrade_sha: "1e894e26d4e1423a9b0d66abd6a79505f4175ff6"
  fuelmain_sha: "7702258023b34e67e94594aef0d679a67fd844c5"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/257743

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/257743
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=e29ee054b42eee342587cccfa245e6c77d0c931f
Submitter: Jenkins
Branch: master

commit e29ee054b42eee342587cccfa245e6c77d0c931f
Author: Andriy Popovych <email address hidden>
Date: Tue Dec 15 10:49:33 2015 +0200

    Disable default LVM backend for Cinder

    LVM backend is a default option for Cinder. If user
    choose Ceph, LVM should be turned-off and disabled.

    Change-Id: I3e7d081a0081e6cb5036052ad5c324c815b2a25f
    Closes-Bug: #1525984

[Vitaly Gusev (vgusev)]

Verified on ISO:
VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "297"
  build_id: "297"
  fuel-nailgun_sha: "8930b95bf889ad6fbb7fa3218013aebf15f288b6"
  python-fuelclient_sha: "8013333fdbe69df41f665b4b31c731e8d4982a07"
  fuel-agent_sha: "3a568b454b496a07639c188c428a5e10e1a61253"
  fuel-nailgun-agent_sha: "a33a58d378c117c0f509b0e7badc6f0910364154"
  astute_sha: "c56dfde2da034151a7e707b381c4cf9d213b4ba2"
  fuel-library_sha: "ce7315bcaec88cf21c0d54485c9d1e402d20e8dc"
  fuel-ostf_sha: "9910a4726cbd038c257582b429527e40c4c3cb20"
  fuel-mirror_sha: "c1c856f49c9fc228b6a00c9c9b4bcbac9c49468f"
  fuelmenu_sha: "680b720291ff577f4c058cee25f85e563c96312e"
  shotgun_sha: "a0bd06508067935f2ae9be2523ed0d1717b995ce"
  network-checker_sha: "67d4954c92ec0001032f732fea5da6cb32037371"
  fuel-upgrade_sha: "1e894e26d4e1423a9b0d66abd6a79505f4175ff6"
  fuelmain_sha: "7702258023b34e67e94594aef0d679a67fd844c5"