KVM: arm64: Fix comment on barrier in kvm_psci_vcpu_on()

The barrier is there for power_off rather than power_state.
Probably typo in commit 358b28f ("arm/arm64: KVM: Allow
a VCPU to fully reset itself").

Signed-off-by: Fuad Tabba <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Fuad Tabba

arch/arm64/kvm/psci.c

@@ -109,7 +109,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 
 	/*
 	 * Make sure the reset request is observed if the change to
-	 * power_state is observed.
+	 * power_off is observed.
 	 */
 	smp_wmb();