The Makefile for binutils creates a broken symlink to "binutils-linaro" in
"trunk/build_dir/toolchain-<target>_gcc-4.9-linaro_uClibc-0.9.33.2".
Modify the Makefile to point the symlink to the correct directory.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42954 3c298f89-4303-0410-b956-a3cf2f4a3e73