replace last references to device by module

Change-Id: I2b7099715c356054aad21895f11b13547f104a88
Reviewed-on: https://forge.frm2.tum.de/review/17126
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>

secop/client/baseclient.py

@@ -181,9 +181,9 @@ class Client(object):
                 exception = info
             self.log = logStub()
         self._cache = dict()
-        if 'device' in opts:
+        if 'module' in opts:
             # serial port
-            devport = opts.pop('device')
+            devport = opts.pop('module')
             baudrate = int(opts.pop('baudrate', 115200))
             self.contactPoint = "serial://%s:%s" % (devport, baudrate)
             self.connection = serial.Serial(