Fix usage of "extra_tht_configs" to allow passing extra config to overcloud deploy

[yatin]

Currently "extra_tht_configs" is being handled in "overcloud-prep-config" role[1], which can be skipped like [2], this parameter is required to copy extra tht configs to undercloud and add those configs to overcloud deploy command(using fact 'extra_tht_config_args'). So this parameter and setting should move to overcloud-deploy role as it's being used only in that role.

[1] https://github.com/openstack/tripleo-quickstart-extras/blob/master/roles/overcloud-prep-config/tasks/main.yml#L75-L86
[2] https://github.com/openstack/tripleo-quickstart-extras/blob/master/playbooks/multinode-overcloud-prep.yml#L6-L8

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/621473

[Juan Antonio Osorio Robles (juan-osorio-robles)]

Still working on this?

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/621473
Committed: https://git.openstack.org/cgit/openstack/tripleo-quickstart-extras/commit/?id=4666dc02a0051e9eb7116e630986e7408480f927
Submitter: Zuul
Branch: master

commit 4666dc02a0051e9eb7116e630986e7408480f927
Author: yatin <email address hidden>
Date: Mon Dec 3 10:20:26 2018 +0530

    Move 'extra_tht_configs' tasks to overcloud-deploy role

    'extra_tht_configs' parameter is used to pass extra tht
    configs to overcloud deploy command(using 'extra_tht_config_args'
    fact), this parameter is used to modify overcloud-deploy command,
    so this patch moves the tasks associated with it to overcloud-deploy
    role.

    Closes-Bug: #1806328
    Change-Id: I4367bd554bfc06b2416fee792b5b2a91ff8f7ff8