comment fortigate variable until config is ready
comment fortigate variable until config is ready

tested as part of prod deployment testing of PR
https://github.com/GoogleCloudPlatform/pbmm-on-gcp-onboarding/pull/43#issuecomment-1089026769
GoogleCloudPlatform/pbmm-on-gcp-onboarding,GoogleCloudPlatform/pbmm-on-gcp-onboarding,GoogleCloudPlatform/pbmm-on-gcp-onboarding