reset: berlin: Make reset_control_ops const

The berlin_reset_ops structure is never modified. Make it const.

Signed-off-by: Philipp Zabel <[e-mail]>
Acked-by: Antoine Tenart <[e-mail]>

drivers/reset/reset-berlin.c

···
 	return 0;
 }
 
-static struct reset_control_ops berlin_reset_ops = {
+static const struct reset_control_ops berlin_reset_ops = {
 	.reset	= berlin_reset_reset,
 };