uhd: move non-52MHz transceiver to common radio device interface

Use the same header files for the device and start moving
toward a commmon transceiver without so much redundant code.

Signed-off-by: Thomas Tsou <ttsou@vt.edu>

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2641 19bc5d8c-e614-43d4-8b26-e1612bc8e597
diff --git a/Transceiver52M/radioDevice.h b/Transceiver52M/radioDevice.h
index 8835ae5..f10da3e 100644
--- a/Transceiver52M/radioDevice.h
+++ b/Transceiver52M/radioDevice.h
@@ -29,6 +29,7 @@
   public:
   static RadioDevice *make(double desiredSampleRate, bool skipRx = false);
 
+  /** Initialize the USRP */
   virtual bool open()=0;
 
   /** Start the USRP */
@@ -37,6 +38,9 @@
   /** Stop the USRP */
   virtual bool stop()=0;
 
+  /** Enable thread priority */
+  virtual void setPriority()=0;
+
   /**
 	Read samples from the radio.
 	@param buf preallocated buf to contain read result