tree ea2f2580dd8f73bcc0cb8d541a10b6bdba0c8cea
parent c3675583e93b0529a024bf63020e5f518f988a6a
author Simon Glass <sjg@chromium.org> 1636745283 -0700
committer Simon Glass <sjg@chromium.org> 1643212242 -0700

fit_check_sign: Update help to mention the key is in a dtb

The key is inside a dtb file, so tweak the help to make that clear.

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