Set UPR port to 11209

As Alk suggested on the last port change [1], the indexer
should use the internal UPR/TAP port and not the one that
is used by the normal clients.

Here's what Alk proposed:

"btw you should use 11209.
It's exact same thing as 11210. But with "connections quota"
specifically reserved for internal uses.
I.e. so that clients' connections exhausting "general" connections
limit of 10k cannot DoS our own internal interaction with memcached.
It works because there's dedicated 1k connections limit for
port 11209 which normal 11210 connections cannot exhaust."

[1] http://review.couchbase.org/32605

Change-Id: I747dae1a1fe269dee05b1741200aa40a621733ef
Reviewed-on: http://review.couchbase.org/33067
Reviewed-by: Pratap Chakravarthy <pratapsrc@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>