Fixed bug when adding standard function like ADD, SUB, MUL,... that are overloaded. Block type was not selected and shown when opening FBDBlockDialog to edit it.
<xsd:element name="Xenomai">
<xsd:complexType>
%(toolchain_gcc)s
<xsd:attribute name="XenoConfig" type="xsd:string" use="optional" default="xeno-config"/>
</xsd:complexType>
</xsd:element>