UAPI: (Scripted) Set up UAPI Kbuild files

Set up empty UAPI Kbuild files to be populated by the header splitter.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
diff --git a/include/uapi/xen/Kbuild b/include/uapi/xen/Kbuild
new file mode 100644
index 0000000..aafaa5a
--- /dev/null
+++ b/include/uapi/xen/Kbuild
@@ -0,0 +1 @@
+# UAPI Header export list