fpga: Add missing Kconfig symbols for old FPGA drivers

Those drivers could not be built anymore without those options present.

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20221007122003.11239-2-ada@thorsis.com