Changes to LV522 southwest dorms (#5790)

# About the pull request

This PR moves an unbreakable wall south-west of LV522s dorms slightly
more north to allow the marines to more easily flank and gain a foothold
into dorms but still doesn't allow them to fully bypass the building

https://i.imgur.com/QL9KvT1.png

# Explain why it's good for the game

Currently, marines on LV522 struggle to get into dorms this PR attempts
to fix that by giving them slightly more breathing room and the ability
to move while still not allowing them to bypass the building fully

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

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screenshots and the `<details>` tags.

</details>


# Changelog
:cl: SpartanBobby
maptweak: Edits to southwest dorms LV522
/:cl: