PR #306 closeout: supersede original mega-PR

[SnowCheetos]

Context

rust-osdev#306 should be treated as an exploration branch. Maintainer feedback was constructive but clear: the branch is too large, too mixed, and has history that blocks review/merge.

Once replacement PRs exist, rust-osdev#306 should be closed or clearly marked as superseded.

Scope

Coordinate the upstream communication around replacing rust-osdev#306 with smaller PRs.

Proposed comment for rust-osdev#306

Thanks, this is fair feedback. I’m going to stop trying to make this branch reviewable as-is and split it up.

Plan:
1. Open a small PR for the platform fixes from the first two commits, without version bumps or generated commit text.
2. Open a separate PR for the global-lock #305 fix and test.
3. Drop or split out the unrelated GIC/resource-descriptor changes.
4. Rebuild the allocator API work on a clean branch, preserving `Global` defaults/`new`, avoiding formatting churn, and writing commit messages that explain the design decisions, especially around `Allocator + Clone`, string storage, and error types.

I’ll treat this PR as an exploration branch and supersede it with smaller reviewable PRs.

Acceptance criteria

• Replacement PRs are opened or at least branch links are ready.
• Comment is posted on Make AML interpreter storage allocator-api compatible rust-osdev/acpi#306 with the final plan.
• Original PR is closed once the replacement series is available.
• New PRs link back to Make AML interpreter storage allocator-api compatible rust-osdev/acpi#306 for context.