8463b5b Two more small changes to grub2 password doc

Authored and Committed by mlewando 3 months ago
    Two more small changes to grub2 password doc
    
    - bootloader does not need to be reinstalled after running mkconfig
    - add/clarify encrypted password kickstart options
    
    Signed-off-by: Marta Lewandowska <mlewando@redhat.com>