Fix existing spelling errors

Change-Id: Ie689cf5a344aaa630a4860448b09242333a8e119

1.Use opendev.org instead of git.openstack.org.
2.Use review.opendev.org instead of review.openstack.org.

You can see the discussion below:
http://lists.openstack.org/pipermail/openstack-discuss/2019-March/003603.html

Change-Id: Ice4509204df788a1a44a06fb89fb44cfe6b54b94

fix typo for specs/kubernetes-deployment.rst, tools/ovs-dpdkctl.sh, tools/setup_gate.sh

'managment' -> 'management'
'seperated' -> 'separated'
'occuring' -> 'occurring'
'discribed' -> 'described'
'recomended' -> 'recommended'
'thier' -> 'their'

Change-Id: Ie59c600698c965cebd9a541b951d704eda9301cb

Change-Id: I9d5e99d7412165f288fcd796ee588bfab1f76f4b

TrivialFix

Change-Id: Ifca64d8c4d6e7654d25001022e806f082acfa0b8

related blueprint kolla-kubernetes

Change-Id: Ib1023787fca096d22a21c583c1ef647ccf925f00

This reverts commit 99761c5c.

Change-Id: Ib40224841f3399c6794b8aa71ca5cd7f0308a722

related blueprint kolla-kubernetes
Co-Authored-By:  <mrostecki@mirantis.com>

Change-Id: I5ef968a0f9b4a1b47b32bb041fbc5d5a3c2e2be7