aarch64: Tag ARM and AArch64 binaries in the ldconfig cache

Add the correct tags for ARM and AArch64 libraries in the ldconfig
cache for AArch64.

Signed-off-by: Steve McIntyre <steve.mcintyre@linaro.org>

ports/ChangeLog.aarch64

@@ -1,3 +1,7 @@
+2012-12-04  Steve McIntyre <steve.mcintyre@linaro.org>
+
+        * sysdeps/unix/sysv/linux/aarch64/readelflib.c: New file.
+
 2012-11-29  Steve McIntyre <steve.mcintyre@linaro.org>
 
 	* sysdeps/unix/sysv/linux/aarch64/dl-cache.h: New file.

ports/sysdeps/unix/sysv/linux/aarch64/readelflib.c

@@ -0,0 +1,18 @@
+/* Copyright (C) 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "../arm/readelflib.c"