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
wifi: avoid crash when no phy's are found

Exit gracefully when no phy's are found.

Change-Id: I8c1f57e60bb63b52d8cb086e1a25d8d5b33f03f0
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>