Build

fixes and improvements for nvme_copy_test #4426

Job	Run time
muon minimal static	32s
musl libc minimal static build on Debian	41s
libnvme (debian, gcc, release)	50s
cross (ppc64le)	48s
musl libc build on Debian	41s
build libnvme and nvme-cli separately	43s
musl libc build on Alpine	45s
cross (armhf)	49s
make static	43s
windows-msys2-ucrt64	2m 9s
nvme-cli (debian, gcc, release)	1m 5s
cross (s390x)	49s
nvme-cli (fedora, gcc, debug)	56s
nvme-cli (debian, clang, debug)	54s
nvme-cli (fedora, clang, release)	51s
nvme-cli (tumbleweed, clang, debug)	53s
nvme-cli (tumbleweed, gcc, release)	1m 23s
nvme-cli (debian, clang, release)	1m 7s
nvme-cli (fedora, clang, debug)	56s
nvme-cli (fedora, gcc, release)	1m 4s
nvme-cli (debian, gcc, debug)	54s
nvme-cli (tumbleweed, clang, release)	1m 7s
nvme-cli (tumbleweed, gcc, debug)	49s
fallback shared libraries	0s
	21m 29s

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