VR hal: toggled -> hwbinder

Test: daydream works with headset.
Bug: 34274385
Bug: 36955154
Change-Id: I28158db67ff435c64b8f0935a343c0119bf5763a
(cherry picked from commit c9ab7f97cc315cd16dc892b06776b639a0d475bb)
diff --git a/manifest.xml b/manifest.xml
index f1244b8..be2dfa1 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -275,7 +275,7 @@
     </hal>
     <hal format="hidl">
         <name>android.hardware.vr</name>
-        <transport arch="32+64">toggled</transport>
+        <transport>hwbinder</transport>
         <impl level="generic"></impl>
         <version>1.0</version>
         <interface>