Update preference screen title.

- Add missing title to preference screen xml so that they will be used to
set the activity title when the fragment is launched.
- Also updated some incorrect preference screen titles.
- Overrides getTitle() in preference fragments that do not use the
preference screen xml.

Bug: 64564191
Test: blaze-bin/screenshots/android/i18nscreenshots/i18nscreenshots
Change-Id: Id72d5ddf18f0962bc484de8bbd847a2e55d6371e

src/com/android/settings/nfc/AndroidBeam.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.nfc;
 
+import android.annotation.StringRes;
 import android.nfc.NfcAdapter;
 import android.os.Bundle;
 import android.os.UserHandle;
@@ -130,4 +131,10 @@ public class AndroidBeam extends InstrumentedPreferenceFragment
     public int getMetricsCategory() {
         return MetricsEvent.NFC_BEAM;
     }
+
+    @Override
+    @StringRes
+    protected int getTitle() {
+        return R.string.android_beam_settings_title;
+    }
 }