classes/lib/scripts: Use bb.utils.rename() instead of os.rename()

Incremental build in Docker fails with:

OSError: [Errno 18] Invalid cross-device link

when source and destination are on different overlay filesystems.

Rather than adding fallback code to every call site, use a new wrapper
in bitbake which detects this case and falls back to shutil.move
which is slower but will handtle the overlay docker filesystems correctly.

[YOCTO #14301]

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>