Start VirtualizationService on demand.

Bug: 183582651
Test: atest VirtualizationTestCases
Change-Id: If6cec89206492cf9818a586d9439ebdb62f27342
diff --git a/apex/virtualizationservice.rc b/apex/virtualizationservice.rc
index 6e0b045..7e71105 100644
--- a/apex/virtualizationservice.rc
+++ b/apex/virtualizationservice.rc
@@ -16,4 +16,6 @@
     class main
     user virtualizationservice
     group virtualizationservice
+    interface aidl android.system.virtualizationservice
     disabled
+    oneshot