Added ifndef ICS_AUDIO_BLOB around non-existent functions (2/3)

For older audio blobs where is_source_active and is_stream_active_remotely
doesn't exist, receiving a notification and dumpsys crashes the audio service.

Change-Id: I2ec4dcece3c95c9972ce78f1f7a38fe522dd7802
Merge pull request #1 from SlimRoms/jb4.3

Added ifndef ICS_AUDIO_BLOB around non-existent functions (2/3)