Settings: Protect sensitive data on the about phone

- Hide some personal info like phone number and IMEI.
- IMEI shows on a tap, so why not.
- Avoid showing this in screenshot/screenrecord

Co-authored-by: El Dainosor <eldainosor@gmail.com>
Change-Id: I45b7898da440c36045aec64a0a86fb804116cd9d

res/xml/my_device_info.xml

@@ -57,7 +57,6 @@
             android:order="3"
             android:title="@string/status_number"
             android:summary="@string/summary_placeholder"
-            android:selectable="false"
             settings:controller="com.android.settings.deviceinfo.PhoneNumberPreferenceController"
             settings:enableCopying="true"/>
     </PreferenceCategory>