matmulnbits zero_point fix #21357

Job	Run time
Check if image exists in registry	9s
licensing	4m 42s
cancel	2s
linux (ubuntu-20.04, debug)	9m 34s
linux (ubuntu-20.04, release)	9m 34s
linux (ubuntu-20.04, codecov)	9m 16s
pyflakes	3m 2s
linux-fpga (ubuntu-20.04, debug)	25m 35s
Build SLES image	1h 6m 31s
Build image	1h 10m 15s
sles	6m 43s
cppcheck	55m 36s
tidy	7m 41s
format	7m 2s
	4h 35m 42s

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