Add missing dependency on built_ext_data
Change-Id: I4e7cca7f6cbc7f5b7416ac9b85a9aec01e61ecd4
(cherry-picked from commit b85d30a2c8)
Layoutlib is a custom version of the android View framework designed to run inside Eclipse. The goal of the library is to provide layout rendering in Eclipse that are very very close to their rendering on devices. None of the com.android.* or android.* classes in layoutlib run on devices.