CONFIG_MACH_N35 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_MACH_N35 (not configurable)

configname: CONFIG_MACH_N35

Linux Kernel Configuration
└─>S3C2410 Machines
└─>MACH_N35
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
Internal node in order to enable support for Acer N35 if Acer N30 is
selected.

is depended by
CONFIG_MACH_N30