AOSP/DeskClock - Add Kotlin for AlarmNotifications and AlarmService

Test: manual - Ran the following on Sargo phone. Tested the alarm
setting and ringing behaviour.

$ source build/envsetup.sh
$ lunch aosp_sargo-userdebug
$ make DeskClockKotlin -j
$ adb install out/target/product/sargo/product/app/DeskClockKotlin/DeskClockKotlin.apk

BUG: 157255731

Change-Id: I5ca2145621c8a08fa675e570b1f8ebe24e3dbccd
3 files changed