Merge changes I2183ac9f,I2c76701c,Ibbe4e11a,I0706faa2,Ic5b7c4fb, ...

* changes:
  Fix dependency on BOARD_AVB_SYSTEM_KEY_PATH
  Fix some java library dependencies
  Depend on NDK libraries
  Call clean-path in more places
  Add missing dependecy on SOONG_ZIP
  Add dependencies on the toolchain (clang, etc)