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

Support Dave/DENX QongEVB-LITE platform

modulename: mach-qong.ko

configname: CONFIG_MACH_QONG

Linux Kernel Configuration
└─>Support Dave/DENX QongEVB-LITE platform
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Include support for Dave/DENX QongEVB-LITE platform. This includes
specific configurations for the board and its peripherals.

source code:
arch/arm/mach-imx/mach-qong.c