Integrate seedvault
diff --git a/SeedvaultOverlay/Android.bp b/SeedvaultOverlay/Android.bp
new file mode 100644
index 0000000..cf3c871
--- /dev/null
+++ b/SeedvaultOverlay/Android.bp
@@ -0,0 +1,4 @@
+runtime_resource_overlay {
+    name: "SeedvaultOverlay",
+    product_specific: true
+}