Moved libalsautils to vendor. Marked libaudioutils and libaudioroute as
vendor_available

Bug: 33241851
Bug: 37527576
Test: Build sailfish and pass CTS audio
Test: With BOARD_VNDK_VERSION:=current, no link type check
errors related to these libs

Change-Id: Ifacd2305a79a50f6bf3182344bc678082047022f
3 files changed