CONFIG_ARCH_MMP is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Marvell PXA168/910/MMP2/MMP3

modulename: mfp.ko

and/or

irq-mmp.ko

configname: CONFIG_ARCH_MMP

Linux Kernel Configuration
└─>Marvell PXA168/910/MMP2/MMP3
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Support for Marvell's PXA168/PXA910(MMP), MMP2, and MMP3 processor lines.

source code:
arch/arm/plat-pxa/mfp.c