增加支持hp & spk 自动切换

hc

2024-03-22 619f0f87159c5dbd2755b1b0a0eb35784be84e7a

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Label imx7d-pico-buildroot
  kernel /boot/zImage
  devicetree /boot/imx7d-pico-pi.dtb
  append root=PARTUUID=${uuid} rootwait rw console=${console},${baudrate}