Build

docs: Make documentation build depend on -Dlibnvme and -Dnvme #3890

Job	Run time
make static	41s
libnvme (clang, release)	48s
cross (armhf)	49s
libnvme (gcc, release)	51s
libnvme (clang, debug)	50s
musl libc build on Alpine	44s
muon minimal static	41s
cross (ppc64le)	48s
libnvme (gcc, debug)	42s
nvme-cli (clang, release)	58s
nvme-cli (gcc, debug)	52s
nvme-cli (clang, debug)	55s
nvme-cli (gcc, release)	1m 15s
build libnvme and nvme-cli separately	44s
cross (s390x)	42s
musl libc build on Debian	36s
fallback shared libraries	0s
	12m 56s

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