lib: system: freertos: Add metal/errno.h to match standalone #291

	# SPDX-License-Identifier: BSD-3-Clause
	# Copyright (c) 2020 STMicroelectronics

	name: libmetal Continuous Integration

	on:
	push:
	branches: [ main ]
	paths-ignore:
	- docs/**
	- cmake/**
	- scripts/**
	pull_request:
	branches: [ main ]
	paths-ignore:
	- docs/**
	- cmake/**
	- scripts/**

	jobs:
	platform_builds:
	name: check builds on different platforms
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: build for Linux
	id: build_linux
	uses: ./.github/actions/build_ci
	with:
	target: linux
	- name: build for generic arm
	id: build_generic
	uses: ./.github/actions/build_ci
	with:
	target: generic
	- name: build for FreeRTOS
	id: build_freertos
	uses: ./.github/actions/build_ci
	with:
	target: freertos
	- name: build for Zephyr
	id: build_Zephyr
	uses: ./.github/actions/build_ci
	with:
	target: zephyr

	nr_tests:
	name: nonreg tests
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: configure
	run: \|
	sudo apt-get update && sudo apt-get install libsysfs-dev
	cmake . -Bbuild
	- name: build
	run: \|
	cd build
	make
	- name: execute test
	run: \|
	cd build
	make test
	- name: test logs
	if: failure()
	run: \|
	cat build/Testing/Temporary/LastTest.log
	exit 1

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