Memory: move memory setup into MemorySystem

src/core/hle/kernel/vm_manager.h

@@ -113,7 +113,7 @@ public:
     std::map<VAddr, VirtualMemoryArea> vma_map;
     using VMAHandle = decltype(vma_map)::const_iterator;
 
-    VMManager();
+    explicit VMManager(Memory::MemorySystem& memory);
     ~VMManager();
 
     /// Clears the address space map, re-initializing with a single free area.
@@ -227,5 +227,7 @@ private:
 
     /// Updates the pages corresponding to this VMA so they match the VMA's attributes.
     void UpdatePageTableForVMA(const VirtualMemoryArea& vma);
+
+    Memory::MemorySystem& memory;
 };
 } // namespace Kernel