closingd: Fix buffer overread build error with some cross build

Author: arowser

closingd/closingd.c

@@ -127,7 +127,7 @@ static u8 *closing_read_peer_msg(const tal_t *ctx,
 static void send_offer(struct per_peer_state *pps,
 		       const struct chainparams *chainparams,
 		       const struct channel_id *channel_id,
-		       const struct pubkey funding_pubkey[NUM_SIDES],
+		       const struct pubkey *funding_pubkey,
 		       const u8 *funding_wscript,
 		       u32 *local_wallet_index,
 		       const struct ext_key *local_wallet_ext_key,
@@ -226,7 +226,7 @@ static struct amount_sat
 receive_offer(struct per_peer_state *pps,
 	      const struct chainparams *chainparams,
 	      const struct channel_id *channel_id,
-	      const struct pubkey funding_pubkey[NUM_SIDES],
+	      const struct pubkey *funding_pubkey,
 	      const u8 *funding_wscript,
 	      u32 *local_wallet_index,
 	      const struct ext_key *local_wallet_ext_key,