Change handling logic in SystemAudioAutoInitiationAction

Connection to sound system is lost when fail to send
<GiveSystemAudioModeStatus> and it changes to TV speaker.

This CL utilizes failsafe process(handleSystemAudioModeStatusTimeout)
already used in case that Audio system device did not reply to
<SystemAudioModeStatus>.
This will make TV keeps user last settings as possible.

Test: Sanity Test on Android TV connected to AVR.
      Switch TV to standby mode and turn it on after overnight.

Change-Id: I1b8f929cac6e322e9221a0c5b8e0b77737860adc

services/core/java/com/android/server/hdmi/SystemAudioAutoInitiationAction.java

@@ -50,8 +50,7 @@ final class SystemAudioAutoInitiationAction extends HdmiCecFeatureAction {
             @Override
             public void onSendCompleted(int error) {
                 if (error != SendMessageResult.SUCCESS) {
-                    tv().setSystemAudioMode(false);
-                    finish();
+                    handleSystemAudioModeStatusTimeout();
                 }
             }
         });