doc: signature.txt: Document the keydir and keyfile arguments
authorAlexandru Gagniuc <mr.nuke.me@gmail.com>
Fri, 19 Feb 2021 18:45:16 +0000 (12:45 -0600)
committerTom Rini <trini@konsulko.com>
Wed, 14 Apr 2021 19:23:01 +0000 (15:23 -0400)
commitfb6532ec6c0c247dc204f65cb298d0865f7eaf3b
tree1633e6aa1c3d35f5da2b3df936166f54d5990a93
parentf91de329abb6f3a247758354bccb172070ccc4ac
doc: signature.txt: Document the keydir and keyfile arguments

After lots of debating, this documents how we'd like mkimage to treat
'keydir' and 'keyfile' arguments. The rest is in the docs.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
doc/uImage.FIT/signature.txt