add build kerneldeb -- modify dts

hc

2023-10-25 6c2073b7aa40e29d0eca7d571dd7bc590c7ecaa7

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ccflags-y += -O3
 
obj-$(CONFIG_LZ4_COMPRESS) += lz4_compress.o
obj-$(CONFIG_LZ4HC_COMPRESS) += lz4hc_compress.o
obj-$(CONFIG_LZ4_DECOMPRESS) += lz4_decompress.o