serial: sirf: make of_device_ids const

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.
Signed-off-by: NArvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/sirfsoc_uart.c

@@ -1253,7 +1253,7 @@ static enum hrtimer_restart
 	return HRTIMER_RESTART;
 }
 
-static struct of_device_id sirfsoc_uart_ids[] = {
+static const struct of_device_id sirfsoc_uart_ids[] = {
 	{ .compatible = "sirf,prima2-uart", .data = &sirfsoc_uart,},
 	{ .compatible = "sirf,atlas7-uart", .data = &sirfsoc_uart},
 	{ .compatible = "sirf,prima2-usp-uart", .data = &sirfsoc_usp},