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

CONFIG_MACH_OPENRD (not configurable)

modulename: openrd-setup.ko

configname: CONFIG_MACH_OPENRD

Linux Kernel Configuration
└─>Marvell Kirkwood Implementations
└─>MACH_OPENRD
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
source code:
arch/arm/mach-kirkwood/openrd-setup.c