Update NSPR to 4.12 and NSS to 3.23 on iOS

nspr/pr/src/misc/prnetdb.c

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "primpl.h"
 
 #include <string.h>
 
 /*
@@ skipping 45 matching lines @@
  */
 #if defined(XP_BEOS) && defined(BONE_VERSION)
 #include <arpa/inet.h>  /* pick up define for inet_addr */
 #include <sys/socket.h>
 #define _PR_HAVE_GETPROTO_R
 #define _PR_HAVE_GETPROTO_R_POINTER
 #endif
 
 #if defined(SOLARIS) || (defined(BSDI) && defined(_REENTRANT)) \
         || (defined(LINUX) && defined(_REENTRANT) \
-        && !(defined(__GLIBC__) && __GLIBC__ >= 2) \
-        && !defined(ANDROID))
+        && defined(__GLIBC__) && __GLIBC__ < 2)
 #define _PR_HAVE_GETPROTO_R
 #define _PR_HAVE_GETPROTO_R_POINTER
 #endif
 
 #if defined(OSF1) \
         || defined(AIX4_3_PLUS) || (defined(AIX) && defined(_THREAD_SAFE)) \
         || (defined(HPUX10_10) && defined(_REENTRANT)) \
         || (defined(HPUX10_20) && defined(_REENTRANT)) \
         || defined(OPENBSD)
 #define _PR_HAVE_GETPROTO_R
@@ skipping 2256 matching lines @@
 #if !defined(_PR_HAVE_GETADDRINFO)
     return pr_NetAddrToStringFB(addr, string, size);
 #else
 #if defined(_PR_INET6_PROBE)
     if (!_pr_ipv6_is_present())
         return pr_NetAddrToStringFB(addr, string, size);
 #endif
     return pr_NetAddrToStringGNI(addr, string, size);
 #endif
 }  /* PR_NetAddrToString */