CONFIG_M68EZ328 is not available for thedefaultarchitecture x86.
Result is shown for architecture m68k

MC68EZ328

modulename: m68EZ328.ko

configname: CONFIG_M68EZ328

Linux Kernel Configuration
└─>MC68EZ328
In linux kernel since version 2.6.12  
Motorola 68EX328 processor support.

source code: