xen: missing includes

Changes in v2:
- remove pvclock hack;
- remove include linux/types.h from xen/interface/xen.h.
v3:
- Compile under IA64
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index a890804..3871e47 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -10,7 +10,6 @@
 #define __XEN_PUBLIC_XEN_H__
 
 #include <asm/xen/interface.h>
-#include <asm/pvclock-abi.h>
 
 /*
  * XEN "SYSTEM CALLS" (a.k.a. HYPERCALLS).
diff --git a/include/xen/privcmd.h b/include/xen/privcmd.h
index 17857fb..4d58881 100644
--- a/include/xen/privcmd.h
+++ b/include/xen/privcmd.h
@@ -35,6 +35,7 @@
 
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <xen/interface/xen.h>
 
 typedef unsigned long xen_pfn_t;