genetlink: make all genl_ops users const

Now that genl_ops are no longer modified in place when
registering, they can be made const. This patch was done
mostly with spatch:

@@
identifier ops;
@@
+const
 struct genl_ops ops[] = {
 ...
 };

(except the struct thing in net/openvswitch/datapath.c)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 84b7e3e..f558561 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1364,7 +1364,7 @@
 	return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);
 }
 
-static struct genl_ops nfc_genl_ops[] = {
+static const struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
 		.doit = nfc_genl_get_device,