[USBSTOR] CORE-19773 Clamp LUN - Don't just assert on a POSSIBLE case

[anonymou0719]

This PR ports a small fix from DarkFire01/reactos into ReactOS-Longhorn-Initiative/reactos.

We’re a team doing OSS research, and part of our work is tracking useful fixes and helping move them across forks so projects stay consistent and don’t drift over time.

Ported commit: http://github.com/DarkFire01/reactos/commit/0b4be6c60a0487c582dd84f7036df640b8098477

What changed (kept intentionally small):

• Only one file is touched: driver/gamepad.c
• No refactors, cleanup, or formatting-only edits mixed in

Why this is useful here:

• It fixes a gamepad driver issue in a focused way
• Pulling this into the Longhorn tree helps keep driver behavior aligned and avoids carrying the same bug in multiple places

Testing:

• Local testing: not provided yet (feel free to replace this with the exact build/test commands you ran)
• CI link: N/A

If you’d prefer this rebased, squashed, or applied to a different branch, I’m happy to adjust.