Description of problem:
Virt-v2v can't convert guest with LUKS and software RAID1

Version-Release number of selected component (if applicable):
virt-v2v-2.2.0-5.el9.x86_64
libguestfs-1.50.1-3.el9.x86_64
nbdkit-server-1.33.11-1.el9.x86_64
libnbd-1.15.12-1.el9.x86_64
libvirt-daemon-9.1.0-1.el9.x86_64
qemu-img-7.2.0-14.el9_2.x86_64

How reproducible:
100%

Steps to Reproduce:
1.Prepare a linux guest with LUKS and RAID1 on VMware

1. lsblk
   NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
   sda 8:0 0 16G 0 disk
   ├─sda1 8:1 0 14G 0 part
   │ └─md127 9:127 0 14G 0 raid1
   │ └─luks-f544246f-8e5a-4007-996b-373eb92068dc 253:2 0 13.9G 0 crypt /
   ├─sda2 8:2 0 1G 0 part
   │ └─md126 9:126 0 1022M 0 raid1 /boot
   └─sda3 8:3 0 1G 0 part
   └─rhel_vm-212-143-swap 253:0 0 2G 0 lvm
   └─luks-178f7943-a400-48b3-bd67-eca57b0ba62b 253:1 0 2G 0 crypt [SWAP]
   sdb 8:16 0 16G 0 disk
   ├─sdb1 8:17 0 14G 0 part
   │ └─md127 9:127 0 14G 0 raid1
   │ └─luks-f544246f-8e5a-4007-996b-373eb92068dc 253:2 0 13.9G 0 crypt /
   ├─sdb2 8:18 0 1G 0 part
   │ └─md126 9:126 0 1022M 0 raid1 /boot
   └─sdb3 8:19 0 1G 0 part
   └─rhel_vm-212-143-swap 253:0 0 2G 0 lvm
   └─luks-178f7943-a400-48b3-bd67-eca57b0ba62b 253:1 0 2G 0 crypt [SWAP]
   sr0

2.Use virt-v2v to convert the guest from VMware

1. virt-v2v -ic vpx://root@10.73.212.149/data/10.73.212.36/?no_verify=1 -it vddk -io vddk-libdir=/home/vddk8.0.0 -io vddk-thumbprint=D1:03:96:7E:11:3D:7C:4C:B6:50:28:1B:63:74:B5:40:5F:9D:9F:94 -ip /home/passwd -o rhv-upload -oc https://dell-per740-22.lab.eng.pek2.redhat.com/ovirt-engine/api -op /home/rhvpasswd -os nfs_data esx8.0-rhel9.2-raid1-with-luks-redhat123
   [ 0.2] Setting up the source: -i libvirt -ic vpx://root@10.73.212.149/data/10.73.212.36/?no_verify=1 -it vddk esx8.0-rhel9.2-raid1-with-luks-redhat123
   [ 3.2] Opening the source
   Enter key or passphrase ("/dev/rhel_vm-212-143/swap"):
   [ 25.3] Inspecting the source
   virt-v2v: error: inspection could not detect the source guest (or physical
   machine).

Assuming that you are running virt-v2v/virt-p2v on a source which is
supported (and not, for example, a blank disk), then this should not
happen.

No root device found in this operating system image.

If reporting bugs, run virt-v2v with debugging enabled and include the
complete output:

virt-v2v -v -x [...]

Actual results:
As above description

Expected results:
Virt-v2v can convert guest with LUKS and software RAID1

Additional info: