Update edit text padding on Bluetooth device renaming dialog

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

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:paddingStart="8dip"

    android:paddingEnd="8dip">

    android:paddingStart="20dp"

    android:paddingEnd="20dp"

    android:paddingTop="16dp"

    android:paddingBottom="12dp"

    >

    <EditText

        android:id="@+id/edittext"

        android:maxLength="50"

        android:singleLine="true"

    />

</LinearLayout>