ovn-controller can be configured with a system-id override file or
-n option to use any suffix for OVSDB options. Currently ovn-bgp-agent
just uses a constant "bgp" for this and there is no way to change it.
48db2a7a35
Let's allow this suffix to be set via a config option instead.
Change-Id: Ida30b46e16ddcdc2d82af980546876f72a845c1d
(cherry picked from commit e3cb1b4a472e0c2743690af62768a96a1c2b8c00)
656a427e39