'Update states for HA routers.
Get a map of router_id to its HA state on a host and update the DB.
State must be in: (\'active\', \'standby\').'

@db_api.retry_db_errors
def update_ha_routers_states(self, context, **kwargs):

    states = kwargs.get('states')
    host = kwargs.get('host')
    LOG.debug('Updating    HA    routers    states    on    host    %s:    %s', host, states)
    self.l3plugin.update_routers_states(context, states, host)
