python/trx: fork RadioInterfaceUHD from RadioInterface

Change-Id: I1644a3f6b8da0d5f2a1a133058269e5383948fda
diff --git a/python/trx/CMakeLists.txt b/python/trx/CMakeLists.txt
index 11290f3..dbb3daa9 100644
--- a/python/trx/CMakeLists.txt
+++ b/python/trx/CMakeLists.txt
@@ -24,6 +24,7 @@
     ctrl_if.py
     ctrl_if_bb.py
     radio_if.py
+    radio_if_uhd.py
     radio_if_grc.py
     transceiver.py
     dict_toggle_sign.py