KVM: arm64: Group setting traps for protected VMs by control register

Group setting protected VM traps by control register rather than
feature id register, since some trap values (e.g., PAuth), depend
on more than one feature id register.

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20241216105057.579031-3-tabba@google.com


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