Doc/security/vboot: Add a script generated device list

Add a script generated list of vboot enabled devices to the
documentation. Add a entry to the release checklist.

Change-Id: Ibb57d26c5f0cb8efd27ca9a97fd762c25b566f93
Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39200
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

util/vboot_list/description.md

@@ -0,0 +1,2 @@
+Tools to generate a list of vboot enabled devices to the documentation
+`Bash`

util/vboot_list/vboot_list.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+TOP="$( cd "$( dirname "${BASH_SOURCE[0]}" )"/../.. >/dev/null 2>&1 && pwd )"
+MAINBOARDS="src/mainboard"
+OUTPUT_FILE=${1:-$TOP/Documentation/security/vboot/list_vboot.md}
+
+function has_vboot
+{
+	local DIR=$1
+
+	grep -rq "config VBOOT" $DIR
+	return $?
+}
+
+function get_vendor_name
+{
+	local VENDORDIR=$1
+
+	sed -n '/config VENDOR/{n;s/^[\t[:space:]]\+bool "\(.*\)"/\1/;p;}' \
+		$VENDORDIR/Kconfig.name
+}
+
+function get_board_name
+{
+	local BOARDDIR=$1
+
+	sed -n '/config BOARD/{n;s/^[\t[:space:]]\+bool "\(->\s\+\)\?\(.*\)"/\2/;p;}' \
+		$BOARDDIR/Kconfig.name
+}
+
+function list_vboot_boards
+{
+	local VENDORDIR=$1
+	for BOARD in $(ls -d $VENDORDIR/*/)
+	do
+		has_vboot $BOARD || continue
+		get_board_name $BOARD
+	done
+}
+
+function generate_vboot_list
+{
+for VENDOR in $(ls -d $TOP/$MAINBOARDS/*/)
+do
+	has_vboot $VENDOR || continue
+	echo -e "\n## $(get_vendor_name $VENDOR)"
+	IFS=$'\n'
+	for BOARD in $(list_vboot_boards $VENDOR)
+	do
+		echo "- $BOARD"
+	done
+done
+}
+
+(echo "# VBOOT enabled devices"; generate_vboot_list) > $OUTPUT_FILE