SW-382: Replace Python2 integer division (/) with Python3 one (//)

LCU/checkhardware/checkhardware_lib/data.py

@@ -66,7 +66,7 @@ class AntennaData:
         return self._n_rcus
 
     def antenna(self, rcu):
-        ant = rcu / 2
+        ant = rcu // 2
         if self._rcu_info[str(rcu)]['mode'] in ('1', '2'):
             ant += 48
         return ant
@@ -243,7 +243,7 @@ class AntennaData:
         if (n_samples % 512) > 0:
             logger.warning("data error: number of samples (%d) not multiple of 512 in '%f'" % (
                 n_samples, full_filename))
-        n_frames = n_samples / 512
+        n_frames = n_samples // 512
         data = data.reshape(n_frames, 512)
         #logger.info("recorded data shape %s" %(str(data.shape)))
         return data[:self._requested_seconds,:]