[PATCH] Use linux/io.h instead of asm/io.h

In preparation for moving check_signature, change these users from asm/io.h
to linux/io.h

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index 4639537..7b9d1c1 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -17,7 +17,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
  */
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/input.h>