Add 'vendor.' prefix to a vendor HAL service name

To prevent property name collisions between properties of system and
vendor, 'vendor.' prefix must be added to a vendor HAL service name.
You can see the details in http://go/treble-sysprop-compatibility.

Test: succeeded building and tested on a walleye device
Bug: 36796459
Change-Id: I9b51b48ae553707b9f140480b9e630c7dbbfa471
diff --git a/media/audioserver/audioserver.rc b/media/audioserver/audioserver.rc
index 9d42bce..7874f90 100644
--- a/media/audioserver/audioserver.rc
+++ b/media/audioserver/audioserver.rc
@@ -5,6 +5,9 @@
     group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct
     ioprio rt 4
     writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
+    onrestart restart vendor.audio-hal-2-0
+    # Keep the original service name for backward compatibility when upgrading
+    # O-MR1 devices with framework-only.
     onrestart restart audio-hal-2-0
 
 on property:vts.native_server.on=1