Implement BOARD_USES_STE_HARDWARE [1/2]

-Switches build to include Flattenable.cpp in system/core/libutils

-Keeps source clean for other targets.
Add CMCallService app

-This is works around low incall volume

-Modified to reset audio streams at boot also

-Original commit: https://github.com/TeamCanjica/android_device_samsung_u8500-common/commit/639451085a3e37df81f12cccce763ff67ef730f9

-Author: http://forum.xda-developers.com/showthread.php?t=2676518