Fix deprecation warnings when python 3 is used

- we should use pyudev.Device class property 'properties'
for accesing device properties
- but we still need to keep try catch workaround
because of old pyudev package which is present in centos

tests/plugins/test_base.py

@@ -188,6 +188,7 @@ class DummyDevice(Mapping):
 	def __init__(self,sysname,dictionary,*args,**kwargs):
 		super(DummyDevice,self).__init__(*args,**kwargs)
 		self.dictionary = dictionary
+		self.properties = dictionary
 		self.sys_name = sysname
 		self.setting = '101'
 

tuned/hardware/device_matcher_udev.py

@@ -12,7 +12,13 @@ class DeviceMatcherUdev(device_matcher.DeviceMatcher):
 		"""
 
 		properties = ''
-		for key, val in list(device.items()):
+
+		try:
+			items = device.properties.items()
+		except AttributeError:
+			items = device.items()
+
+		for key, val in list(items):
 			properties += key + '=' + val + '\n'
 
 		return re.search(regex, properties, re.MULTILINE) is not None