[rel-2.2.0] freeze cbsasl to pre-broken state

Change-Id: Id19d8ef4a3f0e2d437abe9827b5539160a5b0c15
Reviewed-on: http://review.couchbase.org/28297
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>