Making supervisor ini files of contrail-api and contrail-discovery in sync

supervisor ini files for contrail-api and contrail-discovery in the contrail-controller
repo are outdated, Making it in sync with the way we edit/populate the ini files during provisioning.

Change-Id: Id4e0bb4046a91370fcf4f4ad0ea1f76a3a1706ee
Closes-Bug: 1380890
Merge "Making supervisor ini files of contrail-api and contrail-discovery in sync"