Add DaydreamVR native libraries and services

Upstreaming the main VR system components from master-dreamos-dev
into goog/master.

Bug: None
Test: `m -j32` succeeds. Sailfish boots and basic_vr sample app works
Change-Id: I853015872afc443aecee10411ef2d6b79184d051
diff --git a/services/vr/Android.bp b/services/vr/Android.bp
index 80df479..af8212a 100644
--- a/services/vr/Android.bp
+++ b/services/vr/Android.bp
@@ -1,3 +1,3 @@
 subdirs = [
-  "*",
+  "*/*",
 ]