Use AOSP ringtones, alarms, notifications, and ui

* I don't think CM has updated theirs in awhile, plus the
AOSP audio is much more crisp and pleasant, while CM's is
a bit tinny and really just not pleasing to the ears.

Change-Id: I7bbfe8079d56641b3870e33cdb8f286f5a7435e5
Merge https://github.com/LiquidSmooth/android_vendor_liquid into lollipop