Some packages on PyPI don't follow the usual expectations for archive
naming. For example, the archive for asyncio-mqtt 0.10.0 is named
asyncio_mqtt-0.10.0.tar.gz (with an underscore instead of the dash used
in the package name).
To handle these edge cases a new PYPI_ARCHIVE_NAME variable is
introduced. By default this is set to the expected archive name based on
the PyPI package name, version and extension but it can be set to a
different value if needed in a recipe which inherits the pypi class.
Signed-off-by: Paul Barker <paul@pbarker.dev> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>