Common: namespace MemoryUtil

Source/Core/Common/MemoryUtil.cpp

@@ -31,6 +31,9 @@
 // Uncomment the following line to be able to run Dolphin in Valgrind.
 //#undef MAP_32BIT
 
+namespace Common
+{
+
 #if !defined(_WIN32)
 #include <unistd.h>
 static uintptr_t RoundPage(uintptr_t addr)
@@ -273,3 +276,5 @@ size_t MemPhysical()
   return (size_t)memInfo.totalram * memInfo.mem_unit;
 #endif
 }
+
+}  // namespace Common