There was not a oslo-incubator module so move openstack/common/keystone_object.py
to sysinv/common/keystone.py and adjust imports where the class was used.
Test:
1. Ran unit tests locally.
2. Built new sysing rpm package.
3. Built new ISO.
4. Installed simplex controller ran a couple of commands sucessfully.
Story: 2006796
Task: 42036
Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I95bc209259f677847cd65ed1fa3466fb99f10603