fix: (IAC-1162) AWS warns of misconfigured EFS mounts

[dhoucgitter]

Changes

• Define the set of AWS EFS best practice NFS mount options to apply with nfs-subdir-external-provisioner baseline tasks
• Use the EFS mount options when EFS storage is present with the aws provider, leave NFS mount options as is for all other storage options
• Add setting fact for STORAGE_TYPE_BACKEND from tfstate when defined in order to select the EFS mount options

Tests

Scenario	Provider	storage_type_backend	Cadence	DAC NFS mount options include noresvport	Notes
1	aws	efs	stable.2023.09	yes	Successful deployment, all pods Running and stable
2	aws	nfs	n/a	no	DAC baseline verified to use existing NFS mount options
3	aws	ontap	n/a	no	DAC baseline verified to use existing NFS mount options
4	azure	n/a	n/a	no	DAC baseline verified to use existing NFS mount options, no unexpected behavior when STORAGE_TYPE_BACKEND is not defined and NOT using aws provider