CONFIG_MACH_UNIVERSAL_C210 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Mobile UNIVERSAL_C210 Board

modulename: mach-universal_c210.ko

configname: CONFIG_MACH_UNIVERSAL_C210

Linux Kernel Configuration
└─>SAMSUNG EXYNOS SoCs Support
└─>Mobile UNIVERSAL_C210 Board
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
Machine support for Samsung Mobile Universal S5PC210 Reference
Board.

source code:
arch/arm/mach-exynos/mach-universal_c210.c