兼容rt-thread5.0以上版本，rt_mq_recv返回值的问题

[zenghaicang]

使用RT_VER_NUM宏，兼容rt-thread5.0以上版本。

[Rbb666]

@zenghaicang 直接按照这个改下吧，已经验证过了：

    rt_ssize_t result;
    struct play_msg msg;
#if (DBG_LEVEL >= DBG_LOG)
    rt_uint8_t last_state;
#endif
    result = rt_mq_recv(player->mq, &msg, sizeof(struct play_msg), timeout);
#if defined(RT_VERSION_CHECK) && (RTTHREAD_VERSION >= RT_VERSION_CHECK(5, 0, 1))
    if (result <= 0)
#else
    if (RT_EOK != result)
#endif
    {
        event = PLAYER_EVENT_NONE;
        return event;
    }