board: mixtile-blade3: use rk3588-mixtile-blade3.dtb on the vendor branch

[evtest-hash]

Summary

Update the Mixtile Blade 3 vendor board configuration to use the renamed
rk3588-mixtile-blade3.dtb.

Changes

• Update the vendor BOOT_FDT_FILE to the new DTB name.
• Remove the now-obsolete edge-only DTB override hook, since vendor and edge
  build the same name.

This depends on armbian/linux-rockchip#556 and has to be merged after it; on
its own it points the vendor branch at a DTB that does not exist yet.

Summary by CodeRabbit

• Bug Fixes
  • Updated the Mixtile Blade 3 board configuration to use the correct device tree by default.
  • Standardized device tree selection across standard and edge software branches for consistent board support.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: armbian/build/.coderabbit.yaml

Review profile: CHILL

Plan: Advanced

Run ID: 16f97fed-7aa5-44fe-b5e1-6a5e57488786

📥 Commits

Reviewing files that changed from the base of the PR and between faa8a66 and 4ca27a2.

📒 Files selected for processing (1)

• config/boards/mixtile-blade3.csc

Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

The Mixtile Blade 3 configuration now uses rockchip/rk3588-mixtile-blade3.dtb by default. The edge-specific hook that applied this device tree was removed.

Changes

Mixtile Blade 3 device tree configuration

Layer / File(s)	Summary
Unify device tree selection config/boards/mixtile-blade3.csc	The default BOOT_FDT_FILE now uses the Mixtile device tree for all branches. The edge-specific override hook was removed.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~3 minutes

Change: Bug fix

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the Mixtile Blade 3 board and the main change: using rk3588-mixtile-blade3.dtb on the vendor branch.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

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[github-actions]

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[evtest-hash]

Please hold this until armbian/linux-rockchip#556 is merged — the vendor BOOT_FDT_FILE here points at the DTB that PR renames, so merging this first would leave the vendor branch without a DTB.