CBD-816: bump mb_master_advertised_version to [2, 0, 2]

So that 2.0.2 node takes over 2.0.1.

Change-Id: Ib0d22e34aeebdab9872ff4dad070847c744b6338
Reviewed-on: http://review.couchbase.org/25323
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>