fix merge problem which cause usrp cannot be initialized

targets/RT/USER/lte-ru.c

@@ -2267,7 +2267,7 @@ void init_RU_proc(RU_t *ru) {
     
     
   }
-  else if (ru->function == eNodeB_3GPP && ru->if_south == LOCAL_RF && (ru->do_prach > 0)) { // DJP - need something else to distinguish between monolithic and PNF
+  else if (ru->function == eNodeB_3GPP && ru->if_south == LOCAL_RF ) { // DJP - need something else to distinguish between monolithic and PNF
     LOG_I(PHY,"%s() DJP - added creation of pthread_prach\n", __FUNCTION__);
     pthread_create( &proc->pthread_prach, attr_prach, ru_thread_prach, (void*)ru );
     ru->state=RU_RUN;