Various fixes for the CPU models to support the features that have been moved to...

Various fixes for the CPU models to support the features that have been moved to python.

src/cpu/base.cc:
src/cpu/base.hh:
src/cpu/simple/atomic.hh:
    Switching out no longer takes a sampler.
src/cpu/simple/atomic.cc:
    Fix up switching out.  Also fix up serialization; the nameOut() was messing up the ordering.
src/cpu/simple/timing.cc:
    Add in quiesce, fix up serialization.
src/cpu/simple/timing.hh:
    Add in queisce, fix up serialization.

--HG--
extra : convert_revision : 9d59d53bdf269d4d82fb119e5ae7c8a5d475880b