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

TI DM644x EVM

modulename: board-dm644x-evm.ko

configname: CONFIG_MACH_DAVINCI_EVM

Linux Kernel Configuration
└─>TI DaVinci Implementations
└─>TI DM644x EVM
In linux kernel since version 2.6.22 (release Date: 2007-07-08)  
Configure this option to specify the whether the board used
for development is a DM644x EVM

source code:
/arch/arm/mach-davinci/board-dm644x-evm.c