packaging: Build universal wheels
packaging: Build universal wheels

Apparently this had been done for us previously? See also:
http://lists.openstack.org/pipermail/openstack-discuss/2020-January/012097.html

Change-Id: I27288f9e503f26827a8274d46b07c1330a21de10

openstack/swift,tipabu/swift,tipabu/swift,openstack/swift,openstack/swift,tipabu/swift,swiftstack/swift,swiftstack/swift,tipabu/swift,swiftstack/swift,openstack/swift