A tier-1 logical router allows us to advertise the static
routes configured as well. This can be done by setting the
advertise_route_static property to True, which is similar
to advertise_route_nat, or advertise_route_connected.
Until now, the router api client in the code didnt not expose
advertise_route_static option. This patch adds that property
to the update_advertisement method.
We also set the default value to False since, the default value
when we create the router is False. So unless someone wants it
the default behavious stays the same.
Change-Id: Ic56df4fe81ea52e43f05b1ffd0c8fbcde8f00370
2c9feb35be