Fixes to Glance tempest tests
Fixes to Glance tempest tests

Improved error handling in the Python client caused
fatal errors in this test, instead of simply waiting
a bit longer. The error was due to the driver not
always having self.state set for all the relevant tables.

This fix ensures self.state is always set for all the
relevant tables.

Change-Id: I73a0c3b3c2bffa4d000712688740948d59171a3f

ekcs/congress,ramineni/my_congress,openstack/congress,ekcs/congress,ekcs/congress,ramineni/my_congress,ramineni/my_congress,openstack/congress,ramineni/my_congress,ekcs/congress