build

Enable valgrind for default builds #3209

Job	Run time
default (gcc, release)	35s
cross (ppc64le)	42s
build libnvme and nvme-cli separately	42s
default (clang, release)	33s
default (clang, debug)	32s
make static	36s
cross (armhf)	42s
muon minimal static	36s
default (gcc, debug)	25s
cross (s390x)	49s
fallback shared libraries	-1s
	6m 11s

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