deps: cherry-pick bfbe4e38d7 from libuv upstream

Original commit message:
  aix: disable ipv6 link local (#4229)

  AIX does not implement ifaddrs and when retrieving the network
  interfaces with uv_interface_addresses there was a test failure in
  tcp_connect6_link_local.

  For now disable ipv6 link local on aix to:

  1) fix broken aix build
  2) stop blocking libuv upgrade in node

  Refs: libuv/libuv#4222 (comment)
  Refs: #50650

Refs: libuv/libuv@bfbe4e3
PR-URL: #50650
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

deps/uv/src/unix/tcp.c

@@ -30,12 +30,8 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
-#if defined(__PASE__)
-#include <as400_protos.h>
-#define ifaddrs ifaddrs_pase
-#define getifaddrs Qp2getifaddrs
-#define freeifaddrs Qp2freeifaddrs
-#else
+/* ifaddrs is not implemented on AIX and IBM i PASE */
+#if !defined(_AIX)
 #include <ifaddrs.h>
 #endif
 
@@ -224,6 +220,10 @@ static int uv__is_ipv6_link_local(const struct sockaddr* addr) {
 
 
 static int uv__ipv6_link_local_scope_id(void) {
+/* disable link local on AIX & PASE for now */
+#if defined(_AIX)
+  return 0;
+#else
   struct sockaddr_in6* a6;
   struct ifaddrs* ifa;
   struct ifaddrs* p;
@@ -244,6 +244,7 @@ static int uv__ipv6_link_local_scope_id(void) {
 
   freeifaddrs(ifa);
   return rv;
+#endif
 }