KVM: arm64: Set protected VM traps based on its view of feature registers

Now that the VM's feature id registers are initialized with the
values of the supported features, use those values to determine
which traps to set using kvm_has_feature().

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20241216105057.579031-9-tabba@google.com


Signed-off-by: Marc Zyngier <maz@kernel.org>