arm64: defconfig: Enable configs for Toshiba Visconti

Enable support for the Toshiba Visconti SoCs.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>

arch/arm64/configs/defconfig

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index e0f3382..8faadd6 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -57,6 +57,7 @@
 CONFIG_ARCH_THUNDER2=y
 CONFIG_ARCH_UNIPHIER=y
 CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARCH_VISCONTI=y
 CONFIG_ARCH_XGENE=y
 CONFIG_ARCH_ZX=y
 CONFIG_ARCH_ZYNQMP=y