Run master scenario/api jobs on api test updates

Currently master scenario/api consolidated jobs not
running on api test changes, remove api tests from
irrelevant-files of these jobs. Also restore
tempest_concurrency of some jobs which was changed
with [1].

[1] https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/836912

Change-Id: Ib56542c8ddcc444fda26a079858fd60b2810d619
10 files changed