Add a patch that avoids hardcoded sphinx dependency.
Switch off a couple of new features (zchunk, html docs for
hawkey library via sphinx) that both require new dependencies.
Move from modulemd 1.x to 2.x, drop upstreamed patches.
(From OE-Core rev: ce54462de6642935859421f2116e25ca5b2faa8c)
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
