platform/x86: ideapad-laptop: constify rfkill_ops structure

Add const to rfkill_ops structure as it is only passed as an argument
to the functions rfkill_alloc. This argument is of type const,
so annotate the structure with const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/ideapad-laptop.c

@@ -512,7 +512,7 @@ static int ideapad_rfk_set(void *data, bool blocked)
 	return write_ec_cmd(priv->priv->adev->handle, opcode, !blocked);
 }
 
-static struct rfkill_ops ideapad_rfk_ops = {
+static const struct rfkill_ops ideapad_rfk_ops = {
 	.set_block = ideapad_rfk_set,
 };