Implement per-directory uprev.

Some sub directories in libchrome should be uprev'ed by just cp -rp.
Currently, the uprev is just per file, and files newly added in the
directory are simply ignored.

This CL implements per-directory uprev, so new files in the directory
will also be uprev'ed correctly.

Bug: 79557560
Test: Ran update_libchrome.py and no diff.
Change-Id: I93b386ba1ba7ccd3f1982b69f97ac7c9ba7731ee
1 file changed