Fix default test node when adding template tests to project
Fix default test node when adding template tests to project

The default test node in the config change was a non-existent one.
Change it to the default master node.
It is expected that the review won't be approved as is and modified
with the adequate slave node; this config change is only a template.

Change-Id: I0586b348a789ea729a0733fbac4443a89e466e8e

enovance/managesf,enovance/managesf,redhat-cip/managesf,redhat-cip/managesf