default or selected kernelversion does not have config value CONFIG_SND_ROCKCHIP_I2S.
Result is shown for kernelversion 5.2.15

CONFIG_SND_ROCKCHIP_I2S (not configurable)

modulename: snd-soc-i2s.ko

configname: CONFIG_SND_ROCKCHIP_I2S

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_ROCKCHIP_I2S
In linux kernel since version 3.17 (release Date: 2014-10-05)  
source code: