boards: litex_vexriscv: Enable LiteX DNA driver

Enable LiteX DNA ID driver in litex_vexriscv board.

Signed-off-by: Jakub Wegnerowski <jwegnerowski@internships.antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
3 files changed