Move away from the outdated setuptools to more modern build
classes.
(From OE-Core rev: dd0de1f1dcbbc389ceb1a032c393e5148e01ad98)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Note that 2.1.4 broke python3-jinja2 so skip to 2.1.5 which doesn't.
(From OE-Core rev: 697a249f27d16adeeee074d0baad83ad67c7a9e6)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>