Settings: Apps started on boot shortcut in memory settings

 * Implement an intent extra to retrieve a tab target
 * Use a tab identifer from apps_ops_categories_cm
    to make sure the selection is correct or ignored

Change-Id: I79d963ecbadc624dc45a398387a348691318b6be
Signed-off-by: AdrianDC <radian.dc@gmail.com>