Extract full information of VM DTBO from dtbo.img by vfio_handler

Bug: 291191362
Test: adb shell /apex/com.android.virt/bin/vm run-microdroid --devices /sys/bus/platform/devices/16d00000.eh --protected

Change-Id: I05d62cc38f90acb9c33a0a441722eadb9d9fe6b0
diff --git a/apex/virtualizationservice.rc b/apex/virtualizationservice.rc
index be90904..8283594 100644
--- a/apex/virtualizationservice.rc
+++ b/apex/virtualizationservice.rc
@@ -22,7 +22,7 @@
 
 service vfio_handler /apex/com.android.virt/bin/vfio_handler
     user root
-    group root
+    group system
     interface aidl android.system.virtualizationservice_internal.IVfioHandler
     disabled
     oneshot