Add FAQ for how to deploy a DP to use with a TF CP

## Definition of done
- Add an FAQ to https://developer.konghq.com/terraform/ that explains that to make a data plane, you need to use a different provider "You’d use the AWS provider, or the GCP provider, or the Digital Ocean provider etc"

## Information
Slack: https://kongstrong.slack.com/archives/C06GUKB4877/p1756152969539219
Question came from Kapa conversation

## Size
small

Start at the Terraform documentation page linked in the issue and locate the FAQ section or its source. Add an FAQ explaining that deploying a data plane requires the appropriate infrastructure provider, such as AWS, GCP, or DigitalOcean; it is done when this guidance is published clearly on the Terraform documentation page.

Written by the indexing model from the issue text.