default or selected kernelversion does not have config value CONFIG_ANDROID_BINDER_IPC_32BIT.
Result is shown for kernelversion 6.7-rc3

Use old (Android 4.4 and earlier) 32-bit binder API

configname: CONFIG_ANDROID_BINDER_IPC_32BIT

Linux Kernel Configuration
└─>Device Drivers
└─>Android
└─>Use old (Android 4.4 and earlier) 32-bit binder API
In linux kernel since version 3.15 (release Date: 2014-06-08)  
The Binder API has been changed to support both 32 and 64bit
applications in a mixed environment.

Enable this to support an old 32-bit Android user-space (v4.4 and
earlier).

Note that enabling this will break newer Android user-space.