update over discharge

Signed-off-by: FuangCao <cavan.cao@foxmail.com>

Source/app_rs485_1.c

@@ -633,7 +633,7 @@ shark_bool shark_battery_ping(u8 times)
 
 shark_bool shark_battery_over_discharge(void)
 {
-	if (shark_charger_state != SHARK_CHG_REMOVE) {
+	if (shark_charger_state == SHARK_CHG_INSERT) {
 		return shark_false;
 	}