Move BGA footprints that are a duplicate of Xilinx BGAs to obsolete
This PR moves multiple footprints that are a dublication of Xilinx BGA footprints to the obsolete folder.
Reasons, why they are not kept but removed:
- The description mentions Xilinx footprints
- I could not find a generic device that fits the specification of the footprint
- There are no symbols using the footprints
The footprints are not generated with the script generator. I will try to find the original PR for each footprint and verify that they are only meant for Xilinx BGAs and are therefore obsolete.
Tracking issue with additional information: https://github.com/KiCad/kicad-footprints/issues/1560