Add a clock method to update the time properties data set.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>

clock.c

@@ -1096,6 +1096,11 @@ struct timePropertiesDS *clock_time_properties(struct clock *c)
 	return &c->tds;
 }
 
+void clock_update_time_properties(struct clock *c, struct timePropertiesDS tds)
+{
+	c->tds = tds;
+}
+
 static void handle_state_decision_event(struct clock *c)
 {
 	struct foreign_clock *best = NULL, *fc;

clock.h

@@ -215,6 +215,13 @@ void clock_sync_interval(struct clock *c, int n);
  */
 struct timePropertiesDS *clock_time_properties(struct clock *c);
 
+/**
+ * Update a clock's time properties data set.
+ * @param c   The clock instance.
+ * @param tds The new time properties data set for the clock.
+ */
+void clock_update_time_properties(struct clock *c, struct timePropertiesDS tds);
+
 /**
  * Obtain a clock's description.
  * @param c  The clock instance.