T: update trace for exmimo2 case

the trace ENB_MASTER_TICK did not work properly in the GUI of
the enb tracer.

Maybe use proc->subframe_tx (or _rx) instead of this proposed
solution, maybe more elegant?

targets/RT/USER/lte-softmodem.c

@@ -2264,7 +2264,12 @@ if (pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset)) abort();
 #endif
 
       /* TODO: is it the right place for master tick? */
-      T(T_ENB_MASTER_TICK, T_INT(frame % 1024), T_INT(sf));
+#ifdef EXMIMO
+      T(T_ENB_MASTER_TICK, T_INT(0), T_INT(frame % 1024), T_INT((sf+9)%10));
+#else
+      T(T_ENB_MASTER_TICK, T_INT(0), T_INT(frame % 1024), T_INT(sf));
+#endif
+
 #if 0
       if (frame>50) {
 	for (int CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {