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

Torbreck

modulename: mach-torbreck.ko

configname: CONFIG_MACH_TORBRECK

Linux Kernel Configuration
└─>S5PV210 Machines
└─>Torbreck
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Machine support for aESOP Torbreck

source code:
arch/arm/mach-s5pv210/mach-torbreck.c