radioInterface: Rename mRadio to mDevice

Previous naming is ready confusing, because "Radio" is actually the
common term between radioInterface and radioDevice, and it looks like
it's referring to radioInterface rather than radioDevice. On the other
hand, mDevice cleary states it refers to the radioDevice item.

Change-Id: I708bb1992a156fb63334f5590f2c6648ca27495e
diff --git a/Transceiver52M/radioInterfaceMulti.cpp b/Transceiver52M/radioInterfaceMulti.cpp
index 0208e82..7c1ee74 100644
--- a/Transceiver52M/radioInterfaceMulti.cpp
+++ b/Transceiver52M/radioInterfaceMulti.cpp
@@ -238,7 +238,7 @@
 		return -1;
 
 	/* Outer buffer access size is fixed */
-	num = mRadio->readSamples(convertRecvBuffer,
+	num = mDevice->readSamples(convertRecvBuffer,
 				  outerRecvBuffer->size(),
 				  &overrun,
 				  readTimestamp,
@@ -339,7 +339,7 @@
 			    (float *) outerSendBuffer->begin(),
 			    1.0 / (float) mChans, 2 * outerSendBuffer->size());
 
-	size_t num = mRadio->writeSamples(convertSendBuffer,
+	size_t num = mDevice->writeSamples(convertSendBuffer,
 					  outerSendBuffer->size(),
 					  &underrun,
 					  writeTimestamp);
@@ -368,9 +368,9 @@
   double shift = (double) getFreqShift(mChans);
 
   if (!chan)
-    return mRadio->setTxFreq(freq + shift * MCBTS_SPACING);
+    return mDevice->setTxFreq(freq + shift * MCBTS_SPACING);
 
-  double center = mRadio->getTxFreq();
+  double center = mDevice->getTxFreq();
   if (!fltcmp(freq, center + (double) (chan - shift) * MCBTS_SPACING)) {
     LOG(NOTICE) << "Channel " << chan << " RF frequency offset is "
                 << freq / 1e6 << " MHz";
@@ -387,9 +387,9 @@
   double shift = (double) getFreqShift(mChans);
 
   if (!chan)
-    return mRadio->setRxFreq(freq + shift * MCBTS_SPACING);
+    return mDevice->setRxFreq(freq + shift * MCBTS_SPACING);
 
-  double center = mRadio->getRxFreq();
+  double center = mDevice->getRxFreq();
   if (!fltcmp(freq, center + (double) (chan - shift) * MCBTS_SPACING)) {
     LOG(NOTICE) << "Channel " << chan << " RF frequency offset is "
                 << freq / 1e6 << " MHz";
@@ -401,7 +401,7 @@
 double RadioInterfaceMulti::setRxGain(double db, size_t chan)
 {
   if (!chan)
-    return mRadio->setRxGain(db);
+    return mDevice->setRxGain(db);
   else
-    return mRadio->getRxGain();
+    return mDevice->getRxGain();
 }