Description of changes

• Implements a common database for internal IP addresses
• All VMs read this to get it's assigned IP
• Resolves: https://jira.tii.ae/browse/SSRCSP-5674

Checklist for things done

• Summary of the proposed changes in the PR description
• More detailed description in the commit message(s)
• Commits are squashed into relevant entities - avoid a lot of minimal dev time commits in the PR
• Contribution guidelines followed
• Ghaf documentation updated with the commit - https://tiiuae.github.io/ghaf/
• PR linked to architecture documentation and requirement(s) (ticket id)
• Test procedure described (or includes tests). Select one or more:
  • Tested on Lenovo X1 x86_64
  • Tested on Jetson Orin NX or AGX aarch64
  • Tested on Polarfire riscv64
• Author has run make-checks and it passes
• All automatic Github Action checks pass - see actions
• Author has added reviewers and removed PR draft status
• Change requires full re-installation
• Change can be updated with nixos-rebuild ... switch

Instructions for Testing

• List all targets that this applies to:
  • Lenovo X1
  • Jetson Orin NX or AGX
• Is this a new feature
  • List the test steps to verify:
    • Check if all the VMs are reachable internally and each has got the IP address as defined in
      • modules/common/networking/hosts-entries.nix
• If it is an improvement how does it impact existing functionality?