lisa.utils: Fix deserialization of lisa.utils.namedtuple()
lisa.utils: Fix deserialization of lisa.utils.namedtuple()

Avoid infinite loop in __getattr__ when the state of the object is not restored
yet.

ARM-software/lisa,credp/lisa,credp/lisa,credp/lisa,ARM-software/lisa,credp/lisa,ARM-software/lisa,ARM-software/lisa