CONFIG_MACH_NEOCORE926 is not available for the selected architecture x86.
Result is shown for architecture arm
Adeneo NEOCORE926
modulename: board-neocore926.ko
configname: CONFIG_MACH_NEOCORE926
Linux Kernel Configuration
└─>Atmel AT91 System-on-Chip
└─>Adeneo NEOCORE926
In linux kernel since version 2.6.29 (release Date: 2009-03-23)
Select this if you are using the Adeneo Neocore 926 board.