tty: serial: msm: Make of_device_id array const

Make of_device_id array const, because all OF functions handle it as const.
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/msm_serial.c

@@ -1065,7 +1065,7 @@ static int msm_serial_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id msm_match_table[] = {
+static const struct of_device_id msm_match_table[] = {
 	{ .compatible = "qcom,msm-uart" },
 	{ .compatible = "qcom,msm-uartdm" },
 	{}