Python parameters types need analogous C++ types

--HG--
extra : convert_revision : d068dfec69b28d48fc299a4108e165decfaaace7

src/python/m5/params.py

@@ -361,6 +361,7 @@ class MemorySize(CheckedInt):
         self._check()
 
 class MemorySize32(CheckedInt):
+    cxx_type = 'uint32_t'
     size = 32
     unsigned = True
     def __init__(self, value):