Enable Compile Option to Build Android Executables

Since we can't debug APKs on 4.1, we sometimes need to
build Skia the old way for Android.  This CL enables
a switch to do so.
Review URL: https://codereview.appspot.com/6408053

git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@4653 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed