netfilter: nf_tables: allow set names up to 32 bytes

Currently, we support set names of up to 16 bytes, get this aligned
with the maximum length we can use in ipset to make it easier when
considering migration to nf_tables.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index f6b1daf..0922354 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -303,7 +303,7 @@
 struct nft_set {
 	struct list_head		list;
 	struct list_head		bindings;
-	char				name[IFNAMSIZ];
+	char				name[NFT_SET_MAXNAMELEN];
 	u32				ktype;
 	u32				dtype;
 	u32				size;