SystemUI: Add missing AOSP RU translation

<?xml version="1.0" encoding="utf-8"?>

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<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">

    <string name="quick_settings_battery_charged_label">Заряжено</string>

    <string name="accessibility_battery_level">Заряд батареи <xliff:g id="number">%d</xliff:g>%</string>

</resources>