mmc: renesas-sdhi: Add R-Car Gen4 support

Support R-Car Gen4 family. The default quirk is similar to previous
generation.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # Use RCAR_64 Kconfig
2 files changed