tree a037f339ecbb0c521fff56cf65f58690fed3df70
parent 7b8c6348284af94abb20893cd8536c068340741e
author Simon Glass <sjg@chromium.org> 1673977677 -0700
committer Tom Rini <trini@konsulko.com> 1674515500 -0500

bootstd: Support reading the device tree with EFI

With EFI booting the device tree is required but is not actually specified
in any way. The normal method is to use a fdtfile environment variable to
get the filename, then look for that file on the media.

Implement this in the bootmeth.

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