Merge "Add string for output switcher transferring state" into rvc-dev

    <!-- Summary for media output group with the active device count [CHAR LIMIT=NONE] -->

    <string name="media_output_group_panel_multiple_devices_summary"><xliff:g id="count" example="2">%1$d</xliff:g> devices selected</string>

    <!-- Summary for media output switching output [CHAR LIMIT=50] -->

    <string name="media_output_switching">Switching\u2026</string>

    <!-- Title for HFP(hands free profile) output switch button in settings. -->

    <string name="take_call_on_title">Take call on</string>