[PATCH 11/12] doc: mkimage: Remove AUTHORS section

[Sean Anderson]

Per man-pages(7), "use of an AUTHORS section is strongly discouraged."
Remove it, and instead add some copyright notices and an SPDX. The default
license for U-Boot is GPL2, so that's what I put. The very first line is a
hint that this man page uses tables. man(1) determines the format of a man
page based on the first non-whitespace character, and \ won't work for
that.

Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---

 doc/mkimage.1 | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/doc/mkimage.1 b/doc/mkimage.1
index 6f4b66f046..529e5a8530 100644
--- a/doc/mkimage.1
+++ b/doc/mkimage.1
@@ -1,4 +1,10 @@
-.TH MKIMAGE 1 "2022-02-07"
+'\" t
+\" SPDX-License-Identifier: GPL-2.0
+\" Copyright (C) 2022 Sean Anderson <seanga2 at gmail.com>
+\" Copyright (C) 2013-20 Simon Glass <sjg at chromium.org>
+\" Copyright (C) 2010 Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
+\" Copyright (C) 2010 Wolfgang Denk <wd at denx.de>
+.TH MKIMAGE 1 2022-06-11 U-Boot
 .
 .SH NAME
 mkimage \- generate images for U-Boot
@@ -459,11 +465,6 @@ file is required.
 .fi
 .in
 .
-.PP
-.SH AUTHOR
-This manual page was written by Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
-and Wolfgang Denk <wd at denx.de>. It was updated for image signing by
-Simon Glass <sjg at chromium.org>.
 .SH SEE ALSO
 .BR dtc (1),
 .BR dumpimage (1),
-- 
2.35.1