audio: Remove fatal errors which aren't really fatal

 * These are gonna cause mass chaos due to broken audio policy configs.

Change-Id: I5d91161ff5649a53bd3eea2d225353ca765729cf
usbaudio: reset profile on device disconnect

Reset ALSA device profile on disconnect event. Entries like
supported sample rates, channel counts, formats will be repopulated
on next connect.

Change-Id: I27d3b7fd7ff22646996f58c53de08547b1a1fb6a
CRs-Fixed: 765434