CONFIG_ARCH_IQ80331 is not available for the default architecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_IQ80331.
Result is shown for kernelversion 5.9.8

Enable support for IQ80331

modulename: iq80331.ko
configname: CONFIG_ARCH_IQ80331

Linux Kernel Configuration
└─> IOP33x Implementation Options
└─> Enable support for IQ80331

Say Y here if you want to run your kernel on the Intel IQ80331
evaluation kit for the IOP331 chipset.

source code: