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

AM3517/05 CRANE board

modulename: board-am3517crane.ko

configname: CONFIG_MACH_CRANEBOARD

Linux Kernel Configuration
└─>TI OMAP/AM/DM/DRA Family
└─>TI OMAP2/3/4 Specific Features
└─>AM3517/05 CRANE board
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
source code:
arch/arm/mach-omap2/board-am3517crane.c