cpuidle-haltpoll: fix error comments in arch_haltpoll_disable

The 'arch_haltpoll_disable' is used to disable guest halt poll.
Correct the comments.

Fixes: a1c4423b ("cpuidle-haltpoll: disable host side polling when kvm virtualized")
Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20200924155800.4939-1-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kernel/kvm.c

@@ -952,7 +952,7 @@ void arch_haltpoll_disable(unsigned int cpu)
 	if (!kvm_para_has_feature(KVM_FEATURE_POLL_CONTROL))
 		return;
 
-	/* Enable guest halt poll disables host halt poll */
+	/* Disable guest halt poll enables host halt poll */
 	smp_call_function_single(cpu, kvm_enable_host_haltpoll, NULL, 1);
 }
 EXPORT_SYMBOL_GPL(arch_haltpoll_disable);