How do you propose to install them in the rover, which is already on Mars? The helicopter base station CPU is already in the rover, since it was included to communicate with the helicopter. And it's no longer needed for that purpose, since the helicopter crashed and broke a propeller.
Not that you are casting shade, but to clarify in defense of a former professor of mine who worked on the FPGA avionics at Nasa Jet Propulsion Laboratory, the helicopter was designed for 5 test flights, and completed 72 before the rotor damage. https://science.nasa.gov/mission/mars-2020-perseverance/inge...