PhysicalMemory has vector of uniform ports instead of one special one.

configs/example/memtest.py:
    PhysicalMemory has vector of uniform ports instead of one special one.
    Other updates to fix obsolete brokenness.
src/mem/physical.cc:
src/mem/physical.hh:
src/python/m5/objects/PhysicalMemory.py:
    Have vector of uniform ports instead of one special one.
src/python/swig/pyobject.cc:
    Add comment.

--HG--
extra : convert_revision : a4a764dcdcd9720bcd07c979d0ece311fc8cb4f1

src/python/m5/objects/PhysicalMemory.py

@@ -4,8 +4,7 @@ from MemObject import *
 
 class PhysicalMemory(MemObject):
     type = 'PhysicalMemory'
-    port = Port("the access port")
-    functional = Port("Functional Access Port")
+    port = VectorPort("the access port")
     range = Param.AddrRange(AddrRange('128MB'), "Device Address")
     file = Param.String('', "memory mapped file")
     latency = Param.Latency('1t', "latency of an access")