[Feature Request] Compliance Setting: "OS must not show boot up messages"

[ferricoxide]

Is your feature request related to a problem? Please describe.

STIG scans calling out ALMA-09-043800

Describe the solution you'd like

Per the STIG guidance:

Configure the grub bootloader to use the "quiet" parameter using the following command:

$ grubby --update-kernel=ALL --args=quiet

Describe alternatives you've considered

Additional context