Copy aarch64 ld.bfd from 4.9 toolchain

 This is to avoid linking errors for arm64 when using
 4.8 toolchain

Change-Id: I74eda8f408e7cdddddba2d52a69dec1556003d65
diff --git a/bin/aarch64-linux-android-ld.bfd b/bin/aarch64-linux-android-ld.bfd
index 1313bc6..4d140b3 100755
--- a/bin/aarch64-linux-android-ld.bfd
+++ b/bin/aarch64-linux-android-ld.bfd
Binary files differ