KVM: arm64: Fix comment for __pkvm_vcpu_init_traps()

Fix the comment to clarify that __pkvm_vcpu_init_traps()
initializes traps for all VMs in protected mode, and not only
for protected VMs.

Signed-off-by: Fuad Tabba <tabba@google.com>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240423150538.2103045-14-tabba@google.com


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