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<https://github.com/RTimothyEdwards/open_pdks/pull/175|#175 Fix DESTDIR>
Pull request opened by <https://github.com/mithro|mithro>
Fixes <https://github.com/RTimothyEdwards/open_pdks/issues/173|#173> by;

• Reworking naming in `staging_install.py` to clearer;
    • `-finalpath` is where the files are installed to on the file system.
    • `-writeto` is where the files will be written.
• Changing the `<http://Makefile.in|Makefile.in>`
<https://github.com/RTimothyEdwards/open_pdks|RTimothyEdwards/open_pdks>