Description of problem：
rhel7-uefi and rhel8.3-efi guest can't boot into OS after converting to local libvirt

Version-Release number of selected component (if applicable):
virt-v2v-2.7.1-1.el10.x86_64
libguestfs-1.54.0-5.el10.x86_64
guestfs-tools-1.52.2-2.el10.x86_64
nbdkit-1.40.4-2.el10.x86_64
libnbd-1.20.3-2.el10.x86_64
libvirt-libs-10.9.0-1.el10.x86_64
qemu-img-9.1.0-6.el10.x86_64

How reproducible:
100%

Steps:

1. Convert a rhel7.9-efi guest from VMware to local libvirt, but the guest can't boot into OS after v2v conversion, pls refer to screenshot 'rhel7.9-efi-guest-after-v2v,png'

# virt-v2v -ic vpx://administrator%40vsphere.local@10.73.213.102/data/10.73.212.38/?no_verify=1 -it vddk -io vddk-libdir=/home/vddk8.0.3 -io  vddk-thumbprint=86:25:2F:5E:74:5C:43:D9:28:62:31:E0:1F:BB:1F:FD:AC:18:A5:93  -ip /home/passwd esx7.0-rhel7.9-uefi  -v -x |& tee > virt-v2v-convert-rhel7-efi-guest.log

2. Convert a rhel8.3-efi guest from VMware to local libvirt, but the guest can't boot into OS after v2v conversion, pls refer to screenshot 'rhel8.3-efi-guest-after-v2v-rhel10.png'

# virt-v2v -ic vpx://administrator%40vsphere.local@10.73.213.102/data/10.73.212.38/?no_verify=1 -it vddk -io vddk-libdir=/home/vddk8.0.3 -io  vddk-thumbprint=86:25:2F:5E:74:5C:43:D9:28:62:31:E0:1F:BB:1F:FD:AC:18:A5:93  -ip /home/passwd Auto-esx7.0-rhel8.3-efi-from-templete -on rhel8.3-efi -v -x |& tee > v2v-convert-rhel8.3-efi-guest-on-rhel10.log

Actual Result:
As above description

Excepted Result:
Fix the bug

Additional info

Related Bug 1508299 - Virt-v2v can't convert rhel7.4 guest whose OS is installed on software RAID with UEFI mode