uio: make uio_info's name and version const

These are only ever assigned constant strings and never modified.

This was noticed because Wolfram Sang needed to cast the result of
of_get_property() in order to assign it to the name field of a struct
uio_info.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/uio_driver.h

@@ -76,8 +76,8 @@ struct uio_device;
  */
 struct uio_info {
 	struct uio_device	*uio_dev;
-	char			*name;
-	char			*version;
+	const char		*name;
+	const char		*version;
 	struct uio_mem		mem[MAX_UIO_MAPS];
 	struct uio_port		port[MAX_UIO_PORT_REGIONS];
 	long			irq;