CONFIG_M5208EVB is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k
default or selected kernelversion does not have config value CONFIG_M5208EVB.
Result is shown for kernelversion 6.2.5

Freescale M5208EVB board support

configname: CONFIG_M5208EVB

Linux Kernel Configuration
└─>Freescale M5208EVB board support
In linux kernel since version 2.6.15 (release Date: 2006-01-02)  
Support for the Freescale Coldfire M5208EVB.

depends
CONFIG_M520x