greybus: es1: use <linux/uaccess.h> and not <asm/uaccess.h>

Asm is only for when you are doing arch-specific stuff, which we aren't
doing here.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/es1.c

@@ -15,7 +15,7 @@
 #include <linux/usb.h>
 #include <linux/kfifo.h>
 #include <linux/debugfs.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "greybus.h"
 #include "svc_msg.h"