build

nvme: retry commands on EAGAIN and EINTR #2998

Job	Run time
default (gcc, debug)	25s
cross (armhf)	40s
cross (s390x)	54s
cross (ppc64le)	41s
muon minimal static	33s
default (gcc, release)	41s
default (clang, debug)	37s
default (clang, release)	37s
build libnvme and nvme-cli separately	33s
make static	1m 43s
fallback shared libraries	0s
	7m 24s

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