netfilter: nft_meta: skip EAGAIN if nft_meta_bridge is not a module

If it is a module, request this module. Otherwise, if it is compiled
built-in or not selected, skip this.

Fixes: 0ef1efd1 ("netfilter: nf_tables: force module load in case select_ops() returns -EAGAIN")
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

net/netfilter/nft_meta.c

@@ -546,7 +546,7 @@ nft_meta_select_ops(const struct nft_ctx *ctx,
 	if (tb[NFTA_META_DREG] && tb[NFTA_META_SREG])
 		return ERR_PTR(-EINVAL);
 
-#ifdef CONFIG_NF_TABLES_BRIDGE
+#if defined(CONFIG_NF_TABLES_BRIDGE) && IS_MODULE(CONFIG_NFT_BRIDGE_META)
 	if (ctx->family == NFPROTO_BRIDGE)
 		return ERR_PTR(-EAGAIN);
 #endif