Allow custom repo configuration for driver container in air-gapped installations

  • Problem: In disconnected installations, driver container is not able to pull kernel-header/kernel-devel packages
  • Fix: Allow users to specify custom repo configuration via ConfigMap mounted as volume to driver container. Under driver section, users can specify configmap name and destination directory to be mounted. Configmap should be created prior in gpu-operator-resources namesapce Signed-off-by: Shiva Krishna, Merla