Termotek: Fix array comparison

Change-Id: I63e2309c03a9b0e40d71a5d31fe6de3dd6cad1b9
Reviewed-on: https://forge.frm2.tum.de/review/c/frm2/tango/entangle/+/26480

Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Jens Krueger <jens.krueger@frm2.tum.de>

entangle/device/termotek_chiller.py

@@ -85,7 +85,7 @@ class TermotekBase(object):
             raise CommunicationFailure('Received data has unexpected length')
         if reply[3] != self.addr:
             raise CommunicationFailure('Destination address unexpected')
-        if reply[4:6] != cmd:
+        if (reply[4:6] != cmd).all():
             raise CommunicationFailure('Reply does not fit request cmd')
 
         return reply[6:-1]