AOSP/DeskClock - Add Kotlin files for Alarm and Ringtone data files

Test: manual - Ran the following on Sargo phone. Tested all ringtone
interactions (ie. setting ringtones, choosing custom ringtone) and
changing alarm settings.

$ 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: I58253684559f08c8034c99aff4592fbd3d0967b5
5 files changed