CONFIG_MVME2500 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Artesyn MVME2500

modulename: mvme2500.ko

configname: CONFIG_MVME2500

Linux Kernel Configuration
└─>Freescale Book-E Machine Type
└─>Artesyn MVME2500
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This option enables support for the Emerson/Artesyn MVME2500 board.

source code: