bundle init.rc contents with its service

Bug: 23186545
Change-Id: I82d8b6dc54ebe32ceb1ed997aaab3701ee7b6c4a
diff --git a/vold.rc b/vold.rc
new file mode 100644
index 0000000..dcf77a2
--- /dev/null
+++ b/vold.rc
@@ -0,0 +1,4 @@
+service vold /system/bin/vold
+    class core
+    socket vold stream 0660 root mount
+    ioprio be 2