List ConsoleTypeInvalid as a client exception.

get_vnc_console() and get_spice_console() in nova.compute.manager should
list ConsoleTypeInvalid as a client exception for rpc. This prevents the
rpc layer from logging a traceback for this exception when raised. It is
an expected type of exception that the client should be left to handle
how it would like.

Fix bug 1154301.

Change-Id: I3a359cbb4edbfabea1775e927b6f9947db26a284
Merge "List ConsoleTypeInvalid as a client exception."