Add option to change timer alert sound

The default alert sound is sometimes quite annoying
PS1: Rebase and save the last picked value as default
PS6: WS fixes

Change-Id: I239e0d56a1562ba2c0fbff92fdf907d1147fb402
DeskClock: add missing landscape view

This was causing a crash on rotation.

Change-Id: I21260445cfeed20d818d6d8c29c11be95bf23f2d
Signed-off-by: Roman Birg <roman@cyngn.com>
Merge remote-tracking branch 'cm/cm-11.0' into kk-mr2