Add prebuilt static library support.

This is done with the new PREBUILT_STATIC_LIBRARY include script.

+ Simplify prebuilts dependencies by removing LOCAL_PREBUILTS.
  You can now simply list your prebuilts into LOCAL_STATIC_LIBRARIES
  and/or LOCAL_SHARED_LIBRARIES.

+ pretty-print paths during install build commands.

Change-Id: I4aca605fc6f818d9669343c6aefc419a78ee0df2
10 files changed