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[spi]spi总线挂载多个设备时可能通信失败 #8556

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@yangpengya

多个spi设备挂载在同一总线上并使用同一spi模式时,后续挂载的设备不能有效初始化cs_pin,导致通信可能失败。关联PR #6933 #6961 #7650

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