Fix Android build for new toolchain

The new toolchain (r8b) does not automatically include
the necessary directories
(http://code.google.com/p/android/issues/detail?id=35279).
Add them manually until this is fixed.
Review URL: https://codereview.appspot.com/6419076

git-svn-id: http://skia.googlecode.com/svn/trunk@4749 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed