Revert "Revert "CBQE:0 Downsize xdcr upgrade test suite, consult PM reg same""

This reverts commit c51858937af65cf8e91ec2da2733e794afcd1bec.

Change-Id: Icd499f40d9522009af91adce9e0491ceea8d1797
Reviewed-on: http://review.couchbase.org/41455
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>