CONFIG_MACH_IMX35_DT is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Support i.MX35 platforms from device tree

modulename: imx35-dt.ko

configname: CONFIG_MACH_IMX35_DT

Linux Kernel Configuration
└─>Freescale i.MX family
└─>Support i.MX35 platforms from device tree
In linux kernel since version 3.14 (release Date: 2014-03-30)  
Include support for Freescale i.MX35 based platforms
using the device tree for discovery.

source code: