Fix workload ocp4_workload_nvidia_gpu_setup configs: snapshot, install_plan_approval

[ryanj]

Fixing workload roles_ocp_workloads/ocp4_workload_nvidia_gpu_setup:

1. nvidia_gpu_operator_use_catalog_snapshot has a default value of false. This change will allow the nvidia operator subscription to be loaded via a custom CatalogSource when the config is reset to true
2. nvidia_gpu_operator_automatic_install_plan_approval has a default value of true. This change allows the operator to function in Manual approval mode when the input is set to false, which will inhibit the nvidia_gpu_operator_starting_csv from automatically rolling forward to the latest available release.

SUMMARY

I noticed that the ocp4_workload_nvidia_gpu_setup workload defines configuration defaults for nvidia_gpu_operator_use_catalog_snapshot, and nvidia_gpu_operator_automatic_install_plan_approval, but the code for these configs was never implemented.

This change allows for more control over the installation of this operator (without changing the default behavior).

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

roles_ocp_workloads/ocp4_workload_nvidia_gpu_setup

ADDITIONAL INFORMATION

Not urgent