Execute after_prepare hook only on iOS/OSX platform

[foonjs]

In my current Cordova based project that runs on both Android and iOS, config.xml used for Android has a different project name than the one in iOS. Whenever after_prepare hook is triggered, it encountered error at finding for "project_name".xcodeproj.

Would suggest moving this hook into iOS and OSX specifically to prevent this hook from running when this command "cordova platform add android" is being executed.

<platform name="ios">
    <hook type="after_prepare" src="src/add-swift-support.js" />
    <hook type="after_platform_add" src="src/add-swift-support.js" />
    <hook type="after_plugin_add" src="src/add-swift-support.js" />
  </platform>
  <platform name="osx">
    <hook type="after_prepare" src="src/add-swift-support.js" />
    <hook type="after_platform_add" src="src/add-swift-support.js" />
    <hook type="after_plugin_add" src="src/add-swift-support.js" />
  </platform>