/usr/powerpc-linux-gnu/lib64/libgo.so.7 is in lib64go7-powerpc-cross 5.3.1-14ubuntu2cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/powerpc-linux-gnu/lib64/libgo.so.7.0.0
/usr/powerpc-linux-gnu/lib64/libgo.so.7.0.0