CONFIG_ARCH_MX35 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_ARCH_MX35 (not configurable)

configname: CONFIG_ARCH_MX35

Linux Kernel Configuration
└─>ARCH_MX35
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
is depended by
CONFIG_SOC_IMX35