Fix db config
Fix db config

Olso.db has removed the deprecated sqlite_db options. [1]

[1] https://review.openstack.org/#/c/449437/

Change-Id: I7ec8c94287e82fd51a1af66b864d9f52af5b63c5

openstack/magnum,ArchiFleKs/magnum,openstack/magnum,ArchiFleKs/magnum