OpenPiton Polara FPGA with plic

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2026-03-29T08:31:50Z

This PR adds support for FPGA emulation of Polara. More specifically it adds the following:

- Adding ALVEO U280 board as a target for FPGA implementation of Polara.

- Adds timing and implementation constraint for Vivado synthesis.

- Logic to instantiate top-level FPGA module for Openpiton framework.

- Scripts for automating synthesis and implementation using Vivado in Openpiton framework.