Add support for ICS audio blobs

Conflicts:
	include/hardware/audio.h
Add additional #ifndef ICS_AUDIO_BLOB flags

Conflicts:
	modules/usbaudio/audio_hw.c
Fix hwcomposer for ST-Ericsson devices
Revert "Remove remnants of HWC 0.x"

This reverts commit 71b9c1fab92727b1463226681d7bd61aac85291b.
ST-Ericsson specific headers
STE Audio Fix [3/4]

Credits:
- @Paul-L for iplementation
- @percy-g2 for porting to Xperia 2012 devices