Add a configuration option for the RZ/V2M SoC.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Link: https://lore.kernel.org/r/20220420204307.87343-1-phil.edworthy@renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>