Domain for the Vivado board files has changed

[hobnob11]

I'd submit a merge request but i'm not sure if this is the only place this is linked, however:

The download link for the Z2 board file found here: https://pynq.readthedocs.io/en/latest/overlay_design_methodology/board_settings.html#vivado-board-files Links here: https://www.tul.com.tw/productspynq-z2.html which as of 30/04/2022 is 404. I found what appears to be the new domain for the same page here: https://www.tulembedded.com/FPGA/ProductsPYNQ-Z2.html

[mariodruiz]

This will be fixed when #1342 is merged

[mariodruiz]

Merged in v3.0