Require oslo.config 1.2.0 final
Require oslo.config 1.2.0 final

Now that 1.2.0 has been released, require it rather than one of the beta
release tarballs.

Closes-Bug: #1182861
Change-Id: I75ffc4a572d14488d19491a38742d6920951c171

CiscoSystems/networking-cisco,Tehsmash/networking-cisco,cisco-openstack/networking-cisco,noironetworks/networking-cisco,hareeshpc/networking-cisco,hareeshpc/networking-cisco,noironetworks/networking-cisco,Gitweijie/first_project,cisco-openstack/networking-cisco,nikolay-fedotov/networking-cisco,Gitweijie/first_project,CiscoSystems/networking-cisco,openstack/networking-cisco,Tehsmash/networking-cisco,openstack/networking-cisco