update .gitignore

hc

2024-03-26 e9199a72d842cbda78ac614eee5db7cdaa6f2530

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label linux
  kernel /boot/Image
  devicetree /boot/sun20i-d1-nezha.dtb
  append console=ttyS0,115200 root=/dev/mmcblk0p1 ro rootwait