/usr/x86_64-linux-gnu/powerpc-linux-gnu/lib/libopcodes.so is in binutils-powerpc-linux-gnu 2.24-2ubuntu1cross0.10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/x86_64-linux-gnu/powerpc-linux-gnu/lib/libopcodes-2.24.so