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

audio/Android.bp

@@ -0,0 +1,24 @@
+// Copyright (C) 2015 The Android Open Source Project
+// Copyright (C) 2021-2022 KonstaKANG
+//
+// SPDX-License-Identifier: Apache-2.0
+
+cc_library_shared {
+    name: "audio.primary.rpi",
+    relative_install_path: "hw",
+    proprietary: true,
+    srcs: ["audio_hw.c"],
+    include_dirs: [
+        "external/expat/lib",
+        "external/tinyalsa/include",
+        "system/media/audio_effects/include",
+        "system/media/audio_utils/include",
+    ],
+    header_libs: ["libhardware_headers"],
+    shared_libs: [
+        "libcutils",
+        "liblog",
+        "libtinyalsa",
+    ],
+    cflags: ["-Wno-unused-parameter"],
+}