support uboot change LCD parameter

hc

2023-11-07 2a9a9d4f6c07f2f23b663fe5fbeac1168a5d1029

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root::0:0:root:/home/root:/bin/sh
pseudopasswd:*:1:1:this-is-the-pseudo-passwd:/nonexistent:/bin/sh
nobody:*:65534:65534:nobody:/nonexistent:/bin/sh