support uboot change LCD parameter

hc

2023-11-07 2a9a9d4f6c07f2f23b663fe5fbeac1168a5d1029

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default firefly-rk3288
 
label firefly-rk3288
kernel /boot/uImage
devicetree /boot/rk3288-firefly.dtb
append console=ttyS2,115200n8 root=/dev/mmcblk0p1 rootwait