Apply rtl_test fix from PR keenerd#13

Author: misham

src/rtl_test.c

@@ -162,8 +162,8 @@ static int ppm_gettime(struct time_generic *tg)
 	struct timeval tv;
 
 	rv = gettimeofday(&tv, NULL);
-	ts->tv_sec = tv.tv_sec;
-	ts->tv_nsec = tv.tv_usec * 1000;
+	tg->tv_sec = tv.tv_sec;
+	tg->tv_nsec = tv.tv_usec * 1000;
 #endif
 	return rv;
 }