Replaces 'oneshot' and 'interface' with 'onrestart restart audioserver'.

This default service should still restart on audioserver restart because
audioserver uses 'onrestart restart vendor.audio-hal-2-0' for restarts.

Bug: 138114550
Bug: 80227481
Test: for i in {0..100}; do \
      adb shell 'ps|grep audio;killall audioserver;ps|grep audio' \
      && sleep 2; \
      done
Test: Ran steps mentioned in http://b/80227481#comment1, device did not
get stuck in boot animation. Killing either audioserver or audio-hal
caused both to restart (just once) and the device booted correctly after
the sleep finished.
Change-Id: Ice128b51f79d3a9de22a719e6d897c8dca915e28
diff --git a/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc b/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
index 6e91bcc..72b4d19 100644
--- a/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
+++ b/audio/common/all-versions/default/service/android.hardware.audio@2.0-service.rc
@@ -6,9 +6,4 @@
     capabilities BLOCK_SUSPEND
     ioprio rt 4
     writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
-    # audioflinger restarts itself when it loses connection with the hal
-    # and its .rc file has an "onrestart restart audio-hal" rule, thus
-    # an additional auto-restart from the init process isn't needed.
-    oneshot
-    interface android.hardware.audio@4.0::IDevicesFactory default
-    interface android.hardware.audio@2.0::IDevicesFactory default
+    onrestart restart audioserver