Merge "matrix: radio HAL uses slot[0-9]+ instance." into pi-dev

        <version>1.0-1</version>

        <interface>

            <name>IRadio</name>

            <instance>slot1</instance>

            <regex-instance>slot[0-9]+</regex-instance>

        </interface>

        <interface>

            <name>ISap</name>

            <instance>slot1</instance>

            <regex-instance>slot[0-9]+</regex-instance>

        </interface>

    </hal>

    <hal format="hidl" optional="true">