Staging: cxt1e1: Replacing asm/io.h with linux/io.h

This patch fixes the warning "Use #include <linux/io.h> instead of
<asm/io.h>" generated by using checkpatch.pi.
Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/cxt1e1/comet.c

@@ -13,7 +13,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/hdlc.h>
 #include "pmcc4_sysdep.h"
 #include "sbecom_inline_linux.h"

drivers/staging/cxt1e1/functions.c

@@ -14,7 +14,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/slab.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/byteorder.h>
 #include <linux/netdevice.h>
 #include <linux/delay.h>

drivers/staging/cxt1e1/pmcc4_drv.c

@@ -28,7 +28,7 @@
 #include <linux/sched.h>        /* include for timer */
 #include <linux/timer.h>        /* include for timer */
 #include <linux/hdlc.h>
-#include <asm/io.h>
+#include <linux/io.h>
 
 #include "sbecom_inline_linux.h"
 #include "libsbew.h"