CONFIG_ARCH_AAEC2000 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_AAEC2000.
Result is shown for kernelversion 5.6.17

Agilent AAEC-2000 based

configname: CONFIG_ARCH_AAEC2000

ARM system type
└─> Agilent AAEC-2000 based

This enables support for systems based on the Agilent AAEC-2000