AudioAttributes: make getVolumeControlStream() non static

In AudioAttributes class:
 - deprecate static getVolumeControlStream(AudioAttributes) method,
 - add non-static getVolumeControlStream() method.

Test: cts-tradefed run cts -m CtsMediaTestCases -t android.media.cts.AudioAttributesTest
Change-Id: Ic2276cb7367e0bcb0c07e1fe63de68dafddbccb5