[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/pcibr/pcibr_reg.c

@@ -8,6 +8,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/types.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcibr_provider.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/pcidev.h>

arch/ia64/sn/pci/tioca_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/tioca_provider.h>

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>

drivers/char/agp/sgi-agp.c

@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/agp_backend.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/tioca_provider.h>