vfio: Reset vfio_container in detaching last group #320

Job	Run time
basic sanity build	28s
run scan-build	13s
compiler builds (gcc)	29s
compiler builds (clang)	9s
distribution builds (almalinux, 8)	37s
run emulated nvme device tests (fedora, 38, default)	29s
run sparse	12s
distribution builds (almalinux, 9)	35s
run emulated nvme device tests (fedora, rawhide, iommufd)	38s
distribution builds (alpine, latest)	15s
distribution builds (archlinux, latest)	22s
distribution builds (debian, trixie)	30s
distribution builds (debian, bookworm)	33s
distribution builds (debian, bullseye)	11s
distribution builds (debian, buster)	44s
distribution builds (fedora, rawhide)	35s
distribution builds (fedora, 38)	1m 14s
distribution builds (fedora, 37)	1m 15s
distribution builds (rockylinux, 8)	46s
distribution builds (rockylinux, 9)	32s
distribution builds (ubuntu, mantic)	37s
distribution builds (ubuntu, lunar)	30s
distribution builds (ubuntu, jammy)	24s
distribution builds (ubuntu, focal)	40s
	12m 58s

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