Corrected address type for accessportv2.

CMSIS/Utilities/PACK.xsd

@@ -418,7 +418,7 @@
   <xs:complexType name="AccessPortV2Type">
     <xs:attribute name="__apid" type="xs:unsignedInt" use="required" />
     <xs:attribute name="__dp" type="xs:unsignedInt" use="optional" />
-    <xs:attribute name="address" type="xs:unsignedInt" use="required" />
+    <xs:attribute name="address" type="NonNegativeInteger" use="required" />
     <xs:attribute name="parent" type="xs:unsignedInt" use="optional" />
     <xs:anyAttribute processContents="lax" />
   </xs:complexType>