Update ili9xxx, st77xx drivers and examples, remove lv.COLOR_DEPTH (#… #567

	name: Build lv_micropython unix port

	on:
	push:
	pull_request:

	jobs:
	build:

	runs-on: ubuntu-20.04

	steps:
	- name: Install Dependencies
	run: \|
	sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
	sudo apt-get update -y -qq
	sudo apt-get install libsdl2-dev parallel libfreetype-dev librlottie-dev libavformat-dev libavcodec-dev libswscale-dev libavutil-dev
	- name: Clone lv_micropython
	run: \|
	git clone https://github.com/lvgl/lv_micropython.git .
	git checkout master
	- name: Initialize lv_bindings submodule
	run: git submodule update --init --recursive lib/lv_bindings
	- name: Update Unix port submodules
	run: make -C ports/unix DEBUG=1 submodules
	- name: Checkout lv_bindings
	working-directory: ./lib/lv_bindings
	run: \|
	git fetch --force ${{ github.event.repository.html_url }} "+refs/heads/:refs/remotes/origin/"
	git fetch --force ${{ github.event.repository.html_url }} "+refs/pull/:refs/remotes/origin/pr/"
	git checkout ${{ github.sha }} \|\| git checkout ${{ github.event.pull_request.head.sha }}
	git submodule update --init --recursive
	- name: Build mpy-cross
	run: make -j $(nproc) -C mpy-cross
	- name: Build the unix port
	run: make -j $(nproc) -C ports/unix DEBUG=1
	- name: Run tests
	run: \|
	export XDG_RUNTIME_DIR=/tmp
	lib/lv_bindings/tests/run.sh

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