Add android.software.virtualization_framework system feature

This feature can be used by applications to determine whether device
supports Android Virtualization Framework.

The feature is defined in the features_com.android.virt.xml that is
bundled inside the com.android.virt APEX.

Bug: 243512044
Test: install virt APEX
Test: adb shell pm list features
Change-Id: I0f1143dff158c6f0a266315a9f3b7c1c50e8a051
diff --git a/apex/permissions/features_com.android.virt.xml b/apex/permissions/features_com.android.virt.xml
new file mode 100644
index 0000000..d2b32e6
--- /dev/null
+++ b/apex/permissions/features_com.android.virt.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2022 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<permissions>
+    <feature name="android.software.virtualization_framework" />
+</permissions>