config_tools: fix vBDF schema pattern issue
add escape charater to fix vBDF pattern match any character issue
for vUART and ivshmem.
@@ -182,7 +182,7 @@ Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:docu
<xs:documentation>A string with up to two hex digits, a ``:``, two hex digits, a ``.``, and one digit between 0-7.</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:string">
- <xs:pattern value="[0-9A-Fa-f]{1,2}:[0-1][0-9A-Fa-f].[0-7]" />
+ <xs:pattern value="[0-9A-Fa-f]{1,2}:[0-1][0-9A-Fa-f]\.[0-7]" />
</xs:restriction>
</xs:simpleType>
