mtl: add dts-codec support #266

	---
	# SPDX-License-Identifier: BSD-3-Clause
	# Tools that can save round-trips to github and a lot of time:
	#
	# yamllint -f parsable this.yml
	# pip3 install ruamel.yaml.cmd
	# yaml merge-expand this.yml exp.yml && diff -w -u this.yml exp.yml
	#
	# github.com also has a powerful web editor that can be used without
	# committing.

	name: codestyle

	# yamllint disable-line rule:truthy
	on: [pull_request]

	jobs:
	yamllint:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 50
	submodules: recursive

	- name: run yamllint
	run: yamllint .github/workflows/*.yml
	checkpatch:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	fetch-depth: ${{ env.PR_FETCH_DEPTH }}

	- name: install codespell
	run: sudo apt update && sudo apt install -y codespell

	- name: checkpatch.pl PR review
	uses: webispy/checkpatch-action@v9
	env:
	CHECKPATCH_COMMAND: ./scripts/checkpatch.pl

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