Add new package: sysfsutils (#18819)

* Add new package: sysfsutils

* fix flake8 error

var/spack/repos/builtin/packages/sysfsutils/package.py

@@ -0,0 +1,27 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Sysfsutils(AutotoolsPackage):
+    """This package's purpose is to provide a set of utilities for interfacing
+    with sysfs, a virtual filesystem in Linux kernel versions 2.5+ that
+    provides a tree of system devices. While a filesystem is a very useful
+    interface, we've decided to provide a stable programming interface
+    that will hopefully make it easier for applications to query system devices
+    and their attributes."""
+
+    homepage = "https://github.com/linux-ras/sysfsutils/"
+    url      = "https://github.com/linux-ras/sysfsutils/archive/sysfsutils_0_5.tar.gz"
+
+    version('0_5',   sha256='6878c8a4281e7de52e57b40fe543b1b4e01d6fbce4ffd45a36e5fc25e376746f')
+    version('0_4_0', sha256='9c78edb118c6bd962e04558ddb2df46d456273284fe3f23bb930dc287225aea5')
+    version('0_3_0', sha256='f10250aa09513d245cb4ed61ac0dbfd7dfb2e7810bcd8804a07b3fe18f08a74a')
+
+    @when('target=aarch64:')
+    def configure_args(self):
+        args = ['--build=arm-linux']
+        return args