Move include to backup, stop compiling event- and property for now

Change-Id: Idef72df30ef0bb7b6f4e651cb8522def5e56bfbe
Change alsa configuartion files to new product_copy.mk
Build property and event-listener from source again
Add alsa-lib and alsa-utils to compile from source. TODO: clean it up
Initial audio support for Medfield-audio board

Change-Id: I4c26a861ab048defee7b5d0fdf4c9fe1f869e18a