Update ARM.CMSIS.pdsc to add Cortex-M52 Dcore

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

<package schemaVersion="1.7.7" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="https://raw.githubusercontent.com/Open-CMSIS-Pack/Open-CMSIS-Pack-Spec/v1.7.7/schema/PACK.xsd">

<package schemaVersion="1.7.31" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="https://raw.githubusercontent.com/Open-CMSIS-Pack/Open-CMSIS-Pack-Spec/v1.7.31/schema/PACK.xsd">

  <name>CMSIS</name>

  <description>CMSIS (Common Microcontroller Software Interface Standard)</description>

  <vendor>ARM</vendor>

    <condition id="ARMv81-MML Device">

      <description>Armv8.1-M main line architecture based device</description>

      <accept Dcore="ARMV81MML"/>

      <accept Dcore="Cortex-M52"/>

      <accept Dcore="Cortex-M55"/>

      <accept Dcore="Cortex-M85"/>

    </condition>