tty: constify of_device_id array

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Timur Tabi <timur@tabi.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 189f52e..708eead 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -622,7 +622,7 @@
 
 #if defined(CONFIG_OF)
 /* Match table for of_platform binding */
-static struct of_device_id ulite_of_match[] = {
+static const struct of_device_id ulite_of_match[] = {
 	{ .compatible = "xlnx,opb-uartlite-1.00.b", },
 	{ .compatible = "xlnx,xps-uartlite-1.00.a", },
 	{}