add build kerneldeb -- modify dts

hc

2023-10-25 6c2073b7aa40e29d0eca7d571dd7bc590c7ecaa7

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config BR2_PACKAGE_BSDIFF
    bool "bsdiff"
    select BR2_PACKAGE_BZIP2
    help
      Binary patch/diff like xdelta but creates smaller diffs.
      Needs bzip2 support.
 
      http://www.daemonology.net/bsdiff/