Merge AndroidManifestNext.xml into AndroidManifest.xml

Changes in AndroidManifestNext.xml were released as part of Android V,
so it is safe to merge to manifest files into one.

This is a prerequisite to follow up patches.

Bug: 378681279
Bug: 365767108
Test: presubmit
Test: builds
Change-Id: Ic0d6b817233669384619f6c2227625a2f45fccd5
diff --git a/android/android.system.virtualmachine.res/AndroidManifest.xml b/android/android.system.virtualmachine.res/AndroidManifest.xml
index 95b9cfa..ebcb8ba 100644
--- a/android/android.system.virtualmachine.res/AndroidManifest.xml
+++ b/android/android.system.virtualmachine.res/AndroidManifest.xml
@@ -20,11 +20,11 @@
   <!-- @SystemApi Allows an application to create and run a Virtual Machine
        using the Virtualization Framework APIs
        (android.system.virtualmachine.*).
-       <p>Protection level: signature|privileged|development
+       <p>Protection level: signature|preinstalled|development
        @hide
   -->
   <permission android:name="android.permission.MANAGE_VIRTUAL_MACHINE"
-      android:protectionLevel="signature|privileged|development" />
+      android:protectionLevel="signature|preinstalled|development" />
 
   <!-- @hide Allows an application to run a Virtual Machine with a custom
        kernel or a Microdroid configuration file.