FROMLIST: KVM: arm64: Initialize the ptdump parser with stage-2 attributes

Define a set of attributes used by the ptdump parser to display the
properties of a guest memory region covered by a pagetable descriptor.
Build a description of the pagetable levels and initialize the parser
with this configuration.

Bug: 260238318
Bug: 278749606
Link: https://lore.kernel.org/all/20240220151035.327199-6-sebastianene@google.com/


Change-Id: Ifa97c21507e52d9f8e120ecd013d6ccf5acce391
Signed-off-by: Sebastian Ene <sebastianene@google.com>