x86, VisWS: turn into generic arch, create include/asm-x86/visws/

move the include/asm-x86/mach-visws/ VISWS specific hardware
details include files into include/asm-x86/visws, to be used from
generic code.

No code changed.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c
index 9b88389..1a7bed4 100644
--- a/arch/x86/pci/visws.c
+++ b/arch/x86/pci/visws.c
@@ -9,8 +9,8 @@
 #include <linux/init.h>
 
 #include <asm/setup.h>
-#include "cobalt.h"
-#include "lithium.h"
+#include <asm/visws/cobalt.h>
+#include <asm/visws/lithium.h>
 
 #include "pci.h"