[WATCHDOG] Clean-up includes

Use #include <linux/io.h> instead of <asm/io.h>
Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
Clean-up includes.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 30d09cb..a41f57c 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -17,8 +17,8 @@
 #include <linux/fs.h>
 #include <linux/platform_device.h>
 #include <linux/reboot.h>
+#include <linux/uaccess.h>
 
-#include <asm/uaccess.h>
 #include <asm/geode.h>
 
 #define GEODEWDT_HZ 500