CONFIG_MACH_KZM9G is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

KZM-A9-GT board

modulename: board-kzm9g.ko

configname: CONFIG_MACH_KZM9G

Linux Kernel Configuration
└─>KZM-A9-GT board
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
/arch/arm/mach-shmobile/