commtech bench: BUGFIX of initialization

* Initialization can be blocking

communication_techniques/src/common.c

@@ -51,6 +51,7 @@ void init_producer_thread(void)
 	init_thread_comm(&tcomms[i_local]);
 	pthread_mutex_lock(&init_lock);
 	init = 1;
+	pthread_cond_signal(&init_cond);
 	pthread_mutex_unlock(&init_lock);
 }