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

Android alarm driver

modulename: alarm.ko

Linux Kernel Configuration
└─> Device Drivers
└─> Staging drivers
└─> Android
└─> Real Time Clock
└─> Android alarm driver

In linux kernel since version 3.4 (release Date: 2012-05-20)  

Provides non-wakeup and rtc backed wakeup alarms based on rtc or
elapsed realtime, and a non-wakeup alarm on the monotonic clock.
Also provides an interface to set the wall time which must be used
for elapsed realtime to work.

source code: