add build kerneldeb -- modify dts

hc

2023-10-25 6c2073b7aa40e29d0eca7d571dd7bc590c7ecaa7

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# From https://gstreamer.freedesktop.org/src/gst-plugins-bad/gst-plugins-bad-1.20.3.tar.xz.sha256sum
sha256  7a11c13b55dd1d2386dd902219e41cbfcdda8e1e0aa3e738186c95074b35da4f  gst-plugins-bad-1.20.3.tar.xz
sha256  dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING