add build kerneldeb -- modify dts

hc

2023-10-25 6c2073b7aa40e29d0eca7d571dd7bc590c7ecaa7

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# Locally computed:
sha256 e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995  flex-2.6.4.tar.gz
# License files, locally calculated
sha256 97fd685958d93be7f8dab939bb8161dbd6afb0718c63bfc337c24321aea44273  COPYING