toy-indexing.xml: Update tlm repo

Change-Id: I51caf47478318f3ff25eadec7287dc9b90474486
Reviewed-on: http://review.couchbase.org/41599
Reviewed-by: Sarath Lakshman <sarath@couchbase.com>
Tested-by: Sarath Lakshman <sarath@couchbase.com>