[bat] use battery charging fg color for chip bg

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<shape xmlns:android="http://schemas.android.com/apk/res/android">

    <corners android:radius="@dimen/ongoing_appops_chip_bg_corner_radius" />

    <!--  Use the battery charging fg color, since the battery will

          always be charging in this chip see BatteryColors.kt -->

    <solid android:color="#162100" />

</shape>

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    @SuppressLint("UseCompatLoadingForDrawables")

    private fun updateResources() {

        roundedContainer.background = mContext.getDrawable(R.drawable.statusbar_chip_bg)

        roundedContainer.background = mContext.getDrawable(R.drawable.statusbar_battery_chip_bg)

    }

}