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Post installation of Minimal UEFI RHEL 8.8 with ANSSI-BP-028 (high) profile, system fails to boot in emergency mode

How reproducible:

1. Install VM using RHEL8.8 DVD ISO in UEFI mode
2. Select DISK and configure custom layout as required by ANSSI-BP-028 (high) security profile.
3. Select minimal software install.
4. Select ANSSI-BP-028 (high) security profile
5. Setup network configuration.
6. Change root password and begin install.
7. Reboot VM.

Expected results

System should boot normally without any issue

Actual results

System fails in emergency mode unable to mount /boot/efi

Additional Information

• The only reason system failed to boot as /boot/efi failed to mount.
• System boots fine when selinux is disabled. (Booting with parameter selinux=0)
• Same issue is observed even in old version RHEL 8.7
• When tried manually loading vfat module shows below error:

# modprobe -vvv vfat
modprobe: INFO: custom logging function 0x55c3d23bff70 registered
modprobe: INFO: Failed to insert module '/lib/modules/4.18.0-425.3.1.el8.x86_64/kernel/fs/fat/fat.ko.xz': Operation not permitted
modprobe: ERROR: could not insert 'vfat': Operation not permitted
modprobe: INFO: context 0x55c3d36a74a0 released
insmod /lib/modules/4.18.0-425.3.1.el8.x86_64/kernel/fs/fat/fat.ko.xz