[audio] Migrate port mute notifs away from bundles

Port mute events to AudioService currently utilize a bundle. Migrate to
the new IAudioManagerNative mute specific method which just takes an int
arg.

Test: manual, port mute events visible in dumpsys audio
Flag: EXEMPT mechanical refactoring
Bug: 391720112
Change-Id: I6ad113a2e4e80f74d8fbdde18bb6302b8a44b66b