The AKS API does not require linux_profile to be set by default, this is enabled by default on Azure
portal. Terraform's schema does not align with this, which causes importing issue.

Pass empty string to refactored function in import test of AKS.

Added the linux_profile configuration string while baking the configuration.

Remove the basic test with linux profile to avoid string concat issue.

linux_profile needs to be computed since it's optional. Otherwise, return `terraform plan` will warn
with change.

If the response of field is not returned in response body, need to return empty array.

Add 2 tests to have more coverage on linuxProfile specific scenarios.

Removed useless linux_profile and kubernetes_version settings for tests.

Add newline to import test file for AKS.

Fix the path issue to correct naming for linux_profile.