backlight: ili922x: Constify lcd_ops

'struct lcd_ops' is not modified by core backlight code, so it can be
made const for increased code safety.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: krzk

drivers/video/backlight/ili922x.c

@@ -472,7 +472,7 @@ static int ili922x_get_power(struct lcd_device *ld)
 	return ili->power;
 }
 
-static struct lcd_ops ili922x_ops = {
+static const struct lcd_ops ili922x_ops = {
 	.get_power = ili922x_get_power,
 	.set_power = ili922x_set_power,
 };