Revert^2 "[strip.sh] Move remaining GNU binutils usage to llvm binutils"

This reverts commit 33dfba1d.

Bug: 141010852
Test: art/test.py -t 137-cfi
Test: llvm-objcopy --dump-section=.gnu_debugdata=mdi.xz libhwui.so && \
      unxz -fk mdi.xz && readelf -a mdi | less
Change-Id: I751b51274a961194647ec11fd3fd49886df1e1b3