arm64: defconfig: Enable R9A09G057 SoC

Enable support for the Renesas RZ/V2H (R9A09G057) SoC in the ARM64
defconfig.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240227232531.218159-5-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/configs/defconfig

@@ -1413,6 +1413,7 @@ CONFIG_ARCH_R9A07G044=y
 CONFIG_ARCH_R9A07G054=y
 CONFIG_ARCH_R9A08G045=y
 CONFIG_ARCH_R9A09G011=y
+CONFIG_ARCH_R9A09G057=y
 CONFIG_ROCKCHIP_IODOMAIN=y
 CONFIG_ARCH_TEGRA_132_SOC=y
 CONFIG_ARCH_TEGRA_210_SOC=y