AOSP/DeskClock - Add Kotlin files for some of Ringtone directory

Test: manual - Ran the following on Sargo phone. Tested changing
ringtones, ringtones playing when alarm rings.

$ 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: I7ef5b8521ee9b353fa957bb3432383a3711951fb
7 files changed