Instructions to add command line arguments to grub configuration do not reflect changes made with 9.3 regarding BLS inheritance affect on grub configuration.

Document here: https://docs.redhat.com/en/documentation/red_hat_virtualization/4.1/html/installation_guide/appe-configuring_a_hypervisor_host_for_pci_passthrough#appe-Configuring_a_Hypervisor_Host_for_PCI_Passthrough

This document suggests to update grub configuration by running: ^{grub2-mkconfig -o /boot/grub2/grub.cfg}

However, the correct argument post 9.3 update would be ^{grub2-mkconfig -o /path/to/grub.cfg --update-bls-cmdline}, post 9.3 update per this document: https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.3_release_notes/new-features#new-features-boot-loader