This is still far from a clean and secure approach, as `pip install`
should not be ran with `sudo`.
However, `-H` limits the area we touch and also fixes some incompat
between disto-provided pip and pip-provided pip.
Change-Id: I0e19dfeaf66f6f453e3868c71016305ae050f0c8 Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>