Add Alpha Linux version of "hello world" test.
Alpha "hello world" test is really Tru64 not Linux... oops.
More restructuring of regression tests.Moving work back to zizzer...configs/common/FSConfig.py:configs/test/fs.py: Move CPU connections out of makeLinuxAlphaSystem()src/python/m5/objects/BaseCPU.py: Create default TLBs in full system. Move utility cache functions here.src/python/m5/objects/O3CPU.py: Add _mem_portstests/run.py: Add binpath() Change maxtick default to 'forever'tests/simple-atomic.py: Use connectmemPorts()tests/simple-timing.py: Fix up.