修复安卓build失败的问题
原因：第三方库自动更新build.gradle配置信息，yarn install之后对应信息更改，无法正常build成功，会报错误
Android resource linking failed
/Users/user/github/p8hApp/android/app/build/intermediates/incremental/mergeDevelopmentXiaomiDebugResources/merged.dir/values/values.xml:2296: error: resource android:attr/fontVariationSettings not found.
/Users/user/github/p8hApp/android/app/build/intermediates/incremental/mergeDevelopmentXiaomiDebugResources/merged.dir/values/values.xml:2296: error: resource android:attr/ttcIndex not found.
error: failed linking references.
解决方法：android/文件夹中build.gradle添加
project.ext {
googlePlayServicesVersion = "15.0.0"
}
