Add virtmanager to the virt APEX

We want to have virtmanager (and its dependencies) inside the APEX so
that they can be updated.

Bug: 180297657
Test: com.android.virt
Change-Id: I79935c99f8884a3260fc19f797466b47b3dc6583
diff --git a/apex/Android.bp b/apex/Android.bp
index 4f7201a..0985577 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -26,7 +26,10 @@
             ],
         },
     },
-    binaries: ["assemble_cvd"],
+    binaries: [
+        "assemble_cvd",
+        "virtmanager",
+    ],
     filesystems: ["microdroid"],
 }