clk: mediatek: Make reset_control_ops const

The mtk_reset_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/mediatek/reset.c

@@ -57,7 +57,7 @@ static int mtk_reset(struct reset_controller_dev *rcdev,
 	return mtk_reset_deassert(rcdev, id);
 }
 
-static struct reset_control_ops mtk_reset_ops = {
+static const struct reset_control_ops mtk_reset_ops = {
 	.assert = mtk_reset_assert,
 	.deassert = mtk_reset_deassert,
 	.reset = mtk_reset,