94ca53c3b9
It causes errors on current Renode versions. It wasn't documented on the
Renode changelog, but SetClockSource property was removed. Before this
change it showed this error:
There was an error executing command 'machine SetClockSource cpu'
machine does not provide a field, method or property SetClockSource.
Signed-off-by: Jean Pierre Dudey <jeandudey@hotmail.com>