Add MTE Settings.

MTE is a technology to help prevent exploitation of some security bugs.
We want to offer users that want to trade off a slight reduction in
performance for higher security the option to do so from the settings
menu.

Test: make RunSettingsRoboTests
      check UI manually
Bug: 245624194
Change-Id: Ifbb76e124142ae843ce90bd604ae8417d65fcc7b

tests/robotests/src/com/android/settings/security/ZygoteShadow.java

@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+package com.android.settings.security;
+
+import com.android.internal.os.Zygote;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+@Implements(Zygote.class)
+public class ZygoteShadow {
+    private static boolean sSupportsMemoryTagging;
+
+    static void setSupportsMemoryTagging(boolean value) {
+        sSupportsMemoryTagging = value;
+    }
+
+    @Implementation
+    public static boolean nativeSupportsMemoryTagging() {
+        return sSupportsMemoryTagging;
+    }
+}