distro_features_check: add class for the new name used in zeus

distro_features_check class has been renamed in zeus and is already
in use in meta-qt5. Add new class that it work also in warrior.

Change-Id: I36b58079e7eaa0d56d8ba34f3ad21c67490f97c4
Reviewed-by: Mikko Gronoff <mikko.gronoff@qt.io>

meta-boot2qt/classes/features_check.bbclass

+############################################################################
+##
+## Copyright (C) 2020 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the Boot to Qt meta layer.
+##
+## $QT_BEGIN_LICENSE:GPL$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 or (at your option) any later version
+## approved by the KDE Free Qt Foundation. The licenses are as published by
+## the Free Software Foundation and appearing in the file LICENSE.GPL3
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+############################################################################
+
+# use old class name still in use in warrior
+inherit distro_features_check