Start debuggerd64 for 64-bit processes

Change-Id: I2fc33d9eb2726b043d2f13bfab0c605dbb6083c7
diff --git a/rootdir/init.rc b/rootdir/init.rc
index fa1ddd4..46fb8bd 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -481,6 +481,9 @@
 service debuggerd /system/bin/debuggerd
     class main
 
+service debuggerd64 /system/bin/debuggerd64
+    class main
+
 service ril-daemon /system/bin/rild
     class main
     socket rild stream 660 root radio