sys-boot/mokutil: Add from Gentoo

It's from Gentoo commit cf90a21600e8d81c12b7e1143f43cd28f58dd70d.

sdk_container/src/third_party/portage-stable/sys-boot/mokutil/Manifest

@@ -0,0 +1 @@
+DIST mokutil-0.6.0.tar.gz 38047 BLAKE2B f2307807c700091f1e5a783b3ad8e7b3eaa17e05580b2c24fd0e92433c6b9bedfb51e9eb2d5d1c71448623b12b6667a573dd51ed03fc738aaf9815083e118ca0 SHA512 11a9d172dba4fbb674e58e5d82cb1dc65a80cff844c0eaebd106b4d4608b24a8207e0cfabf36fe1eedb67f68a8a18db2136c7b62aa3230ac104615e8284dbd7d

sdk_container/src/third_party/portage-stable/sys-boot/mokutil/files/mokutil-0.6.0-conflict.patch

@@ -0,0 +1,38 @@
+From dd55c28236809fc30a7f079882914cde45560277 Mon Sep 17 00:00:00 2001
+From: Gary Lin <glin@suse.com>
+Date: Fri, 30 Jun 2023 10:36:54 +0800
+Subject: [PATCH] Avoid conflicting efi_char16_t type definitions
+
+It's not necessary to define 'efi_char16_t' as 'wchar_t' since we don't
+need any wchar functions. Besides, it may conflict with efivar-38. This
+commit defines 'efi_char16_t' as 'uint16_t' and adds the conditional
+check to avoid the potential conflict.
+
+Fixes: https://github.com/lcp/mokutil/issues/66
+
+Signed-off-by: Gary Lin <glin@suse.com>
+---
+ src/mokutil.h | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/src/mokutil.h b/src/mokutil.h
+index d47a380..bd02608 100644
+--- a/src/mokutil.h
++++ b/src/mokutil.h
+@@ -33,13 +33,14 @@
+ #define __MOKUTIL_H__
+ 
+ #include <ctype.h>
+-#include <wchar.h>
+ 
+ #include "signature.h"
+ 
+ typedef unsigned long efi_status_t;
+ typedef uint8_t efi_bool_t;
+-typedef wchar_t efi_char16_t;		/* UNICODE character */
++#ifndef efi_char16_t
++typedef uint16_t efi_char16_t;		/* UNICODE character */
++#endif
+ 
+ typedef enum {
+ 	DELETE_MOK = 0,

sdk_container/src/third_party/portage-stable/sys-boot/mokutil/metadata.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>zerochaos@gentoo.org</email>
+		<name>Rick Farina</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">lcp/mokutil</remote-id>
+	</upstream>
+</pkgmetadata>

sdk_container/src/third_party/portage-stable/sys-boot/mokutil/mokutil-0.6.0.ebuild

@@ -0,0 +1,28 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+DESCRIPTION="The utility to manipulate machines owner keys which managed in shim"
+HOMEPAGE="https://github.com/lcp/mokutil"
+SRC_URI="https://github.com/lcp/mokutil/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+DEPEND="dev-libs/openssl:=
+	sys-apps/keyutils:=
+	sys-libs/efivar:=
+	virtual/libcrypt:="
+RDEPEND="${DEPEND}"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=( "${FILESDIR}"/mokutil-0.6.0-conflict.patch )
+
+src_prepare() {
+	default
+	eautoreconf
+}