Description of problem:
When booting the installer, a 'hostnqn' file is created. The hostnqn should be generated using the UUID of the host system, however it currently is not.

Version-Release number of selected component (if applicable):
Testing on RHEL 9 Nightly build from January 28, 2022

How reproducible:
Very

Steps to Reproduce:
1. Boot nightly ISO to graphical installer
2. Switch to a console
3. Read the hostnqn ($ cat /etc/nvme/hostnqn) and compare it to the hostnqn that is expected ($ nvme gen-hostnqn)

Actual results:
The hostnqn is not the same as what the nvme utility generates

Expected results:
The hostnqn should be the same as what is generated by the nvme utility

Additional info:
Before the graphical installer begins, a couple things should happen in order to NVME Boot From SAN devices to be discovered automatically:

1. the correct NQN should be generated using 'nvme' utility:
nvme gen-hostnqn > /etc/nvme/hostnqn

2. NVME Discovery should be initiated:
echo add > /sys/class/fc/fc_udev_device/nvme_discovery

3. The NQN and Host ID files should be copied to sysimage so that the files get included by dracut
cp /etc/nvme/hostnqn /mnt/sysimage/etc/nvme/hostnqn
cp /etc/nvme/hostid /mnt/sysimage/etc/nvme/hostnqn

Following these three steps will enable automatic discovery of NVMe devices