Add API for setting supported system usages

By default, a device won't support any system usages until
AudioManager#setSupportedSystemUsages is called

System Usages will be checked when requesting/abandoning audio focus,
and when tracking players.

Bug: 141006627
Test: called setSupportedSystemUsages and verified both dumpsys included
expected values

Change-Id: I65ebb8f9b03dfd759b7142609871589ed7342f67