initial Raspberry Vanilla AOSP 12 commit

* Audio
  - Based on AOSP hikey audio HAL:
    https://android.googlesource.com/device/linaro/hikey/+/refs/heads/master/audio/
  - ALSA based on Android-x86
  - ALSA loop is used to support HDMI audio on Pi 4 because VC4 HDMI
    audio devices use SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE that is not
    supported on Android
    https://github.com/raspberrypi/linux/issues/4651
    https://github.com/raspberrypi/linux/issues/4654

* Bluetooth
  - AOSP Broadcom vendor stack with some additional fixes from android-rpi

* Camera
  - libcamera for official Raspberry Pi CSI camera modules based on GloDroid
  - AOSP external camera HAL for UVC USB webcams:
    https://source.android.com/docs/core/camera/external-usb-cameras

* Graphics
  - OpenGL & Vulkan: upstream Mesa with GloDroid patches
  - Upstream drm_hwcomposer with force resolution patch from Android-x86 and
    my additional fixes
  - minigbm based on GloDroid

* Health
  - Based on AOSP cuttlefish health HAL

* Kernel
  - Merge of Raspberry Pi and AOSP common kernel with my additional fixes
    and configurations
    https://github.com/raspberrypi/linux
    https://android.googlesource.com/kernel/common/

* Lights
  - Based on LineageOS Xiaomi msm8996-common lights HAL

* suspend_blocker
  - Based on AOSP cuttlefish

* v4l2_codec2
  - Based on AOSP with my Raspberry Pi 4 specific fixes

* Wifi
  - AOSP Broadcom vendor stack with my additional fixes

mkimg.sh

@@ -0,0 +1,72 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2021-2022 KonstaKANG
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+VERSION=RaspberryVanillaAOSP12
+DATE=$(date +%Y%m%d)
+IMGNAME=${VERSION}-${DATE}-rpi4.img
+IMGSIZE=7
+OUTDIR=$(pwd | sed 's/\/device\/brcm\/rpi4$//')/out/target/product/rpi4
+
+echo "Creating image file ${OUTDIR}/${IMGNAME}..."
+sudo dd if=/dev/zero of="${OUTDIR}/${IMGNAME}" bs=1M count=$(echo "${IMGSIZE}*1024" | bc)
+sync
+
+echo "Creating partitions..."
+(
+echo o
+echo n
+echo p
+echo 1
+echo
+echo +128M
+echo n
+echo p
+echo 2
+echo
+echo +2048M
+echo n
+echo p
+echo 3
+echo
+echo +256M
+echo n
+echo p
+echo
+echo
+echo t
+echo 1
+echo c
+echo a
+echo 1
+echo w
+) | sudo fdisk "${OUTDIR}/${IMGNAME}"
+sync
+
+LOOPDEV=$(sudo kpartx -av "${OUTDIR}/${IMGNAME}" | awk 'NR==1{ sub(/p[0-9]$/, "", $3); print $3 }')
+if [ -z ${LOOPDEV} ]; then
+  echo "Unable to find loop device!"
+  exit 1
+fi
+echo "Image mounted as /dev/${LOOPDEV}"
+sleep 1
+
+echo "Copying boot..."
+sudo dd if=${OUTDIR}/boot.img of=/dev/mapper/${LOOPDEV}p1 bs=1M
+echo "Copying system..."
+sudo dd if=${OUTDIR}/system.img of=/dev/mapper/${LOOPDEV}p2 bs=1M
+echo "Copying vendor..."
+sudo dd if=${OUTDIR}/vendor.img of=/dev/mapper/${LOOPDEV}p3 bs=1M
+echo "Creating userdata..."
+sudo mkfs.ext4 /dev/mapper/${LOOPDEV}p4 -I 512 -L userdata
+sudo resize2fs /dev/mapper/${LOOPDEV}p4 1212156
+sync
+
+sudo kpartx -d "/dev/${LOOPDEV}"
+echo "Done, created ${OUTDIR}/${IMGNAME}!"
+
+exit 0