Embed VmLauncherApp into com.android.virt

Bug: 333495394
Test: build and then check if VmlauncherApp is included in virt apex
Change-Id: Iffa70df09c566182c33638748d29679307d71e9b
diff --git a/libs/android_display_backend/Android.bp b/libs/android_display_backend/Android.bp
index 6ad5fab..f792a04 100644
--- a/libs/android_display_backend/Android.bp
+++ b/libs/android_display_backend/Android.bp
@@ -11,6 +11,9 @@
     backend: {
         java: {
             enabled: true,
+            apex_available: [
+                "com.android.virt",
+            ],
         },
         cpp: {
             enabled: false,