[IA64] Need to include <asm/sn/io.h> in a few more places.

Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/sn/pci/tioce_provider.c

@@ -11,6 +11,7 @@
 #include <linux/pci.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/addrs.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/tioce_provider.h>