[terraform-ibm-base-ocp-vpc] Onboard new custom_sg to catalog #350
Description
In #342 a new custom_sg example was added. We need a follow up PR to onboard it to catalog by adding it to:
- ibm_catalog.json
- .catalog-onboard-pipeline.yaml
NB: Ensure the catalogValidationValues.json.template is valid for the example as its used by catalog pipeline during onboarding