CONFIG_ARCH_R9A06G032 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

RZ/N1D (R9A06G032)

modulename: r9a06g032-smp.ko

configname: CONFIG_ARCH_R9A06G032

Linux Kernel Configuration
└─>Renesas ARM SoCs
└─>RZ/N1D (R9A06G032)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
drivers/soc/renesas/r9a06g032-smp.c