x86/hyper-v: move synic/stimer control structures definitions to hyperv-tlfs.h

We implement Hyper-V SynIC and synthetic timers in KVM too so there's some
room for code sharing.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 332d7c3..11273cd 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -143,7 +143,7 @@ static int hv_ce_shutdown(struct clock_event_device *evt)
 
 static int hv_ce_set_oneshot(struct clock_event_device *evt)
 {
-	union hv_timer_config timer_cfg;
+	union hv_stimer_config timer_cfg;
 
 	timer_cfg.as_uint64 = 0;
 	timer_cfg.enable = 1;