Fix denial due to vfio_handler's IBoundDevice

As virtualizationmanager holds references to IBoundDevice returned by
vfio_handler, virtualizationmanager should also have permission to
binder_call.

Bug: 278008519
Test: boot microdroid with assigned devices
Change-Id: I7b87de099b0731c386666cec215807dc39d8c89c
diff --git a/private/virtualizationservice.te b/private/virtualizationservice.te
index e17797e..4d8ac6b 100644
--- a/private/virtualizationservice.te
+++ b/private/virtualizationservice.te
@@ -104,6 +104,6 @@
 }:process setrlimit;
 
 is_flag_enabled(RELEASE_AVF_ENABLE_DEVICE_ASSIGNMENT, `
-    # Only virtualizationservice can communicate to vfio_handler
-    neverallow { domain -virtualizationservice -servicemanager } vfio_handler:binder call;
+    # Only virtualizationservice and virtualizationmanager can communicate to vfio_handler
+    neverallow { domain -virtualizationmanager -virtualizationservice -servicemanager } vfio_handler:binder call;
 ')