default or selected kernelversion does not have config value CONFIG_SERIAL_CPM_SCC4.
Result is shown for kernelversion 5.3.7

Support for SCC4 serial port

configname: CONFIG_SERIAL_CPM_SCC4

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Support for SCC4 serial port
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Select this option to use SCC4 as a serial port