drivers/rtc/rtc-rs5c313.c: include <linux/io.h> instead of <asm/io.h>

Use #include <linux/io.h> instead of <asm/io.h> as pointed out by
checkpatch.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-rs5c313.c

@@ -47,7 +47,7 @@
 #include <linux/platform_device.h>
 #include <linux/bcd.h>
 #include <linux/delay.h>
-#include <asm/io.h>
+#include <linux/io.h>
 
 #define DRV_NAME	"rs5c313"
 #define DRV_VERSION 	"1.13"