Update config.js #573

[MayankSingh-NEC]

Need to add some config for Scorpio Broker.
Also I've proposed some changes in node-lib repo for iotagent-json integration with Scorpio broker telefonicaid/iotagent-node-lib#1326.

[mapedraza]

The agents are Context Broker agnostics. No information given about the broker used, and adding information of multiples brokers (Orion, Orion-LD, Stelio or Scorpio) would add lot of noise to the agent config file. This specific port depends on each deployment, at leat in the Orion case, since you can deploy the broker in different ports, so we don't see adding this information is relevant for the user.

Additionally:

• This issue is not related with Issue with NGSI-LD and IoTAgent JSON #573 as you mention in the issue title
• Fix for issue 1325 iotagent-node-lib#1326 is not related with those changes you propose in this PR
• You are changing default port the agent is listening

For all those reasons this PR should be closed