79ca996 Update install guide to note SystemReady Machines

Authored and Committed by jlinton 2 years ago
    Update install guide to note SystemReady Machines
    
    The fedora install guide mentions that its for AMD/Intel machines
    but much of this process also directly applies 1:1 with the Arm
    SBSA/SBBR/SystemReady class of machines which utilize industry
    standard HW/SW in the form of UEFI/ACPI/etc. Lets
    mention those alongside the AMD/Intel when appropriate.
    
    Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>