Python 2 was end-of-lifed six years ago now, so move the python3-six
recipe from oe-core to meta-python. Plenty of recipes still claim to
depend on it, but reviewing these is both a good way to review the
dependencies and potentially identify unmaintained packages.
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
