Drop backports, rebase a couple of patches.
This is the second last release of py 2.x; upstream support ends on
1 January 2020, there will be one final 2.x afterwards.
Note that the only thing that still needs python 2.x in oe-core is
u-boot; when the next u-boot update arrives, we should find out
where the py3 migration is for that component before merging the
update.
(From OE-Core rev: 184b60eb905bb75ecc7a0c29a175e624d8555fac)
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
