Merge "ramp up feature" into main

         CarrierConfigManager#KEY_AUTO_DATA_SWITCH_RAT_SIGNAL_SCORE_STRING_ARRAY.

         If 0, the device always switch to the higher score SIM.

         If < 0, the network type and signal strength based auto switch is disabled. -->

    <integer name="auto_data_switch_score_tolerance">-1</integer>

    <integer name="auto_data_switch_score_tolerance">4000</integer>

    <java-symbol type="integer" name="auto_data_switch_score_tolerance" />

    <!-- Boolean indicating whether the Iwlan data service supports persistence of iwlan ipsec