Default values for registerPropertiesGroup are not documented or specified in xsd file

[ckudera]

In the svdconv tool, default values are assigned to the following parameters in the code:

• size, resetValue, resetMask
• access

However, these default values are neither documented nor specified in the associated XSD file. The description “Elements not defined on a more general level, must be defined at 'register' level at the latest.” gives the impression that there are no default values.