tree 403946143b2dacf22b36e4da3d05b16d486467c8
parent 9665f1977ab61dbb4bb757a3efd0584afe3ada35
author Simon Glass <sjg@chromium.org> 1538418137 -0600
committer Simon Glass <sjg@chromium.org> 1539081627 -0600

doc: Update docs for device tree in SPL, TPL

Make a few small updates to indicate that device tree can be used in SPL
and TPL.

Signed-off-by: Simon Glass <sjg@chromium.org>