【修复】audio_pipe中函数在开启POSIX IPC时与 POSIX PIPE冲突问题

[zx568073531]

拉取/合并请求描述：(PR description)

为什么提交这份PR (why to submit this PR)

audio_pipe中函数在开启POSIX IPC时与 POSIX PIPE冲突问题。在drivers/audio/audio_pipe.c中申明了：

rt_pipe_read
rt_pipe_write
rt_pipe_control

这三个函数，如果在不开启POSIX IPC的情况下可以正常编译过去，但是如果开启 POSIX并打开IPC时，会提示以下错误：

你的解决方案是什么 (what is your solution)

将以下三个函数：

rt_pipe_read
rt_pipe_write
rt_pipe_control

重命名为：

rt_audio_pipe_read
rt_audio_pipe_write
rt_audio_pipe_control

符合下面 rt_audio_pipe_init函数整体规则。

请提供验证的bsp和config (provide the config and bsp)

• BSP:

bsp\at32f437_start

• .config:

#define RT_USING_POSIX_FS
#define RT_USING_POSIX_POLL
#define RT_USING_POSIX_SELECT
#define RT_USING_POSIX_SOCKET
#define RT_USING_POSIX_DELAY
#define RT_USING_POSIX_CLOCK
#define RT_USING_POSIX_TIMER
#define RT_USING_PTHREADS
#define PTHREAD_NUM_MAX 8
#define RT_USING_POSIX_MESSAGE_SEMAPHORE

#define RT_USING_AUDIO
#define RT_AUDIO_REPLAY_MP_BLOCK_SIZE 3840
#define RT_AUDIO_REPLAY_MP_BLOCK_COUNT 2
#define RT_AUDIO_RECORD_PIPE_SIZE 7680

• action:

当前拉取/合并请求的状态 Intent for your PR

必须选择一项 Choose one (Mandatory):

• 本拉取/合并请求是一个草稿版本 This PR is for a code-review and is intended to get feedback
• 本拉取/合并请求是一个成熟版本 This PR is mature, and ready to be integrated into the repo

代码质量 Code Quality：

我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:

• 已经仔细查看过代码改动的对比 Already check the difference between PR and old code
• 代码风格正确，包括缩进空格，命名及其他风格 Style guide is adhered to, including spacing, naming and other styles
• 没有垃圾代码，代码尽量精简，不包含#if 0代码，不包含已经被注释了的代码 All redundant code is removed and cleaned up
• 所有变更均有原因及合理的，并且不会影响到其他软件组件代码或BSP All modifications are justified and not affect other components or BSP
• 对难懂代码均提供对应的注释 I've commented appropriately where code is tricky
• 代码是高质量的 Code in this PR is of high quality
• 已经使用formatting 等源码格式化工具确保格式符合RT-Thread代码规范 This PR complies with RT-Thread code specification