CONFIG_MACH_VR1000 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Thorcom VR1000

modulename: mach-vr1000.ko

configname: CONFIG_MACH_VR1000

Linux Kernel Configuration
└─>SAMSUNG S3C24XX SoCs Support
└─>Thorcom VR1000
In linux kernel since version 2.6.12  
Say Y here if you are using the Thorcom VR1000 board.

source code: