CONFIG_ARCH_MA35 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64

Nuvoton MA35 Architecture

configname: CONFIG_ARCH_MA35

Linux Kernel Configuration
└─>Platform selection
└─>Nuvoton MA35 Architecture
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
This enables support for the ARMv8 based Nuvoton MA35 series SoCs.