audio: fix for FM mute issue

- Add STREAM_FM in mMuteAffectedStreams
  so that FM stream can be muted
- Add STREAM_FM in STREAM_NAMES

Change-Id: I6c604e1a20a466a97ca4246260c0b1a7ad9112d2
CRs-fixed: 441132
UsbManager: Increase delay for USB DISCONNECT event broadcast

When a function (e.g. MTP/RNDIS/ADB) is enabled USB re-enumeration
happens which results in USB disconnect followed by USB connect.
UsbDeviceManager delays the USB disconnect event notification
so that clients wouldn't treat it as if USB cable is really removed.

Increase this delay to 5 seconds, as on some HOST (mainly WinXP) it
has been observed that re-enumeration takes longer time.
Also, for actual cable disconnect make sure that DISCONNECT is
broadcast immediately.

CRs-Fixed: 438139
Change-Id: I589e5014e7583b24c6e16f91013f7d67c55a69c0
Revert 9a82da079d6f699b26eea41252ad4d34c070b547