Merge changes Ifed15e60,Icff8aeeb,I0365be01,I746b07a4

* changes:
  vndk-def: Remove dump_exported_symbols().
  vndk-def: Add parse from ELF dump file.
  vndk-def: Warn on bad user-specified dependencies.
  vndk-def: Split DT_NEEDED and dlopen() into two layers.