Add a DEPENDS on ptyhon3-setuptools-scm-git-archive-native as the setup.py
uses it.
In the future we'll have a Python building tool which validates build
requirements, so remove pip from those dependencies as it shouldn't depend
on a specific build tool being present.
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
