default or selected kernelversion does not have config value CONFIG_SND_OMAP_SOC_AM3517EVM.
Result is shown for kernelversion 6.9.9

SoC Audio support for OMAP3517 / AM3517 EVM

modulename: snd-soc-am3517evm.ko

configname: CONFIG_SND_OMAP_SOC_AM3517EVM

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio support for OMAP3517 / AM3517 EVM
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Say Y if you want to add support for SoC audio on the OMAP3517 / AM3517
EVM.

source code: