将现有的Apk打包到AOSP的编译结果中

1. 在pakcages/apps下创建子目录
2. 将apk放置在此子目录，创建Android.mk
3. 将如下内容写入Android.mk

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := 'youAppName'
LOCAL_SRC_FILES := $(LOCAL_MODULE).apk
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_CERTIFICATE := PRESIGNED
include $(BUILD_PREBUILT)

4. mmm package/apps/youApp/