tree ed2d38f20cab346ea80fdd5cc2102d5bcdc8831b
author Daniel Wang <wonderfly@google.com> 1579738421 -0800
committer Daniel Wang <wonderfly@google.com> 1579738533 -0800

Add an initial manifest

Starts with the public overlays, kernels and known cros_sdk
dependencies. Most of these repos have been forked and now live at our
GoB host.

Change-Id: I5e1cc04959b42791c24a4f102a7a3b5656c36283