UPSTREAM: KVM: arm64: Add missing HFGITR_EL2 FGT entries to nested virt

Add the missing nested virt FGT table entries HFGITR_EL2. Based
on DDI0601 and DDI0602 2023-09.

Bug: 278749606
Change-Id: Iafe580225a1a87694cd00adee22155771e9c9bbc
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231214100158.2305400-8-tabba@google.com
(cherry picked from commit 863ac389)