Check out Hafnium without submodules

Checks out individual Hafnium repositories as Repo projects instead of
being Git submodules. The root project is checked out under `core/` and
its subfolders and important files symlinked into the root.

This way it is possible to clone and build Hafnium only with small
modifications (scripts must not do `realpath` due to symlinks). It is
meant as a first step towards migrating to Repo.

Change-Id: I5284e48f3180fb9077892b01578ac7eb0768c234
1 file changed
tree: cb646fa6b2863dbab1e982f396d1741b11e93d4f
  1. default.xml