reset: bcm6345: Make reset_control_ops const

The bcm6345_reset_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/reset/reset-bcm6345.c

@@ -86,7 +86,7 @@ static int bcm6345_reset_status(struct reset_controller_dev *rcdev,
 	return !(__raw_readl(bcm6345_reset->base) & BIT(id));
 }
 
-static struct reset_control_ops bcm6345_reset_ops = {
+static const struct reset_control_ops bcm6345_reset_ops = {
 	.assert = bcm6345_reset_assert,
 	.deassert = bcm6345_reset_deassert,
 	.reset = bcm6345_reset_reset,