CONFIG_SA1100_NANOENGINE is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

nanoEngine

modulename: nanoengine.ko

configname: CONFIG_SA1100_NANOENGINE

Linux Kernel Configuration
└─>SA11x0 Implementations
└─>nanoEngine
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Say Y here if you are using the Bright Star Engineering nanoEngine.
See <http://www.brightstareng.com/arm/nanoeng.htm> for information
on the BSE nanoEngine.

source code: