build

nvme: add low-level APIs to map prp/sgl without @rq #388

Job	Run time
basic sanity build	32s
nix build	44s
run scan-build	25s
compiler builds (gcc)	9s
run sparse	13s
compiler builds (clang)	12s
run emulated nvme device tests (fedora, 41, default)	28s
run emulated nvme device tests (fedora, 41, iommufd)	37s
distribution builds (almalinux, 8)	39s
distribution builds (almalinux, 9)	36s
distribution builds (alpine, latest)	17s
distribution builds (archlinux, latest)	26s
distribution builds (debian, trixie)	28s
distribution builds (debian, bookworm)	29s
distribution builds (debian, bullseye)	32s
distribution builds (debian, buster)	44s
distribution builds (fedora, rawhide)	29s
distribution builds (fedora, 41)	30s
distribution builds (fedora, 40)	42s
distribution builds (rockylinux, 8)	44s
distribution builds (rockylinux, 9)	38s
distribution builds (ubuntu, oracular)	26s
distribution builds (ubuntu, noble)	37s
distribution builds (ubuntu, jammy)	25s
distribution builds (ubuntu, focal)	34s
	12m 36s

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