Add support for ICS audio blobs

Change-Id: I516dda5fc81bd10922c13cc735509a6803eddaaf

Conflicts:
	include/hardware/audio.h
	modules/audio/audio_hw.c

	modified:   include/hardware/audio.h
	modified:   modules/audio/audio_hw.c
Extend ICS_AUDIO_BLOB back-compat to the 4.2 API

Change-Id: Id58a2eb715c86f6c022e0ef625ce498661d7d29c
 lets get jiggy with audio