Rename XLLV to ULLA

[daniluk4000]

Description of changes

Rename XLLV icao to ULLA

Reason and motivation

Matches real word rename and airport status change

Approved contributior?

• [ ] I am on the approved contributers list
• [ ] I have sent an request by email to get approved
• [x] Someone on the approved contributer list will review this request

[daniluk4000]

@Adrian2k this has been approved by the local staff. Change is minor, but if needed, I can get approved contributor approval.