build

ioctl: use dummy passthru command #3495

Job	Run time
muon minimal static	34s
cross (ppc64le)	54s
cross (armhf)	52s
cross (s390x)	52s
default (clang, release)	57s
default (gcc, debug)	45s
default (gcc, release)	58s
default (clang, debug)	51s
make static	37s
build libnvme and nvme-cli separately	49s
fallback shared libraries	0s
	8m 9s

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