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

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: I554f00ba7f171d2ea91627cae2281623383b3ca7
Merge "Added ifndef ICS_AUDIO_BLOB around non-existent functions (3/3)" into cm-10.2
Merge pull request #1 from CyanogenMod/cm-10.2

update fork