KVM: make 'lapic_timer_ops' and 'kpit_ops' static

Fix this sparse warnings:
  arch/x86/kvm/lapic.c:916:22: warning: symbol 'lapic_timer_ops' was not declared. Should it be static?
  arch/x86/kvm/i8254.c:268:22: warning: symbol 'kpit_ops' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 4e2e3f2..cf09bb6 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -265,7 +265,7 @@
 	return ps->is_periodic;
 }
 
-struct kvm_timer_ops kpit_ops = {
+static struct kvm_timer_ops kpit_ops = {
 	.is_periodic = kpit_is_periodic,
 };