[linux-x86] Refresh gcc prebuilts for aarch64
Refresh gcc-4.9 prebuilts for aarch64. This new prebuilts contain
(1) workaround for cortex-a53 erratum 843419,
(2) some compiler bug fixes,
(3) bug fixes for gold.

Change-Id: Idf88b7ab5f2e94f08a8feade57e17cb5be180bcb
diff --git a/aarch64-linux-android/lib/ldscripts/aarch64elfb.xn b/aarch64-linux-android/lib/ldscripts/aarch64elfb.xn
index 0978f93..201a178 100644
--- a/aarch64-linux-android/lib/ldscripts/aarch64elfb.xn
+++ b/aarch64-linux-android/lib/ldscripts/aarch64elfb.xn
@@ -1,4 +1,8 @@
 /* Script for -n: mix text and data on same page */
+/* Copyright (C) 2014 Free Software Foundation, Inc.
+   Copying and distribution of this script, with or without modification,
+   are permitted in any medium without royalty provided the copyright
+   notice and this notice are preserved.  */
 OUTPUT_FORMAT("elf64-bigaarch64", "elf64-bigaarch64",
 	      "elf64-littleaarch64")
 OUTPUT_ARCH(aarch64)