CONFIG_H8300_AE3068 is not available for thedefaultarchitecture x86.
Result is shown for architecture h8300
default or selected kernelversion does not have config value CONFIG_H8300_AE3068.
Result is shown for kernelversion 6.9.9

AE-3068/69

configname: CONFIG_H8300_AE3068

H8/300 platform
└─>AE-3068/69
In linux kernel since version 4.1 (release Date: 2015-06-21)  
AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support
More Information. (Japanese Only)
<http://akizukidenshi.com/catalog/default.aspx>
AE-3068/69 Evaluation Board Support
More Information.
<http://www.microtronique.com/ae3069lan.htm>