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

CONFIG_SND_SST_IPC (not configurable)

modulename: snd-intel-sst-core.ko

configname: CONFIG_SND_SST_IPC

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_SST_IPC
In linux kernel since version 3.19 (release Date: 2015-02-08)  
source code:
sound/soc//intel/atom/sst/