restart surfaceflinger and drmserver when servicemanager dies

Bug: 5450389

Change-Id: Ib4e73836721e25e2a88185167b030ea75e0d74e3
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 3af0943..0d2b7d4 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -380,6 +380,8 @@
     critical
     onrestart restart zygote
     onrestart restart media
+    onrestart restart surfaceflinger
+    onrestart restart drm
 
 service vold /system/bin/vold
     class core