Fix savestate hash match issue with Saturnus

BizHawk.Emulation.Cores/Waterbox/LibWaterboxCore.cs

@@ -48,7 +48,7 @@ namespace BizHawk.Emulation.Cores.Waterbox
 		}
 
 		[Flags]
-		public enum MemoryDomainFlags : int
+		public enum MemoryDomainFlags : long
 		{
 			None = 0,
 			/// <summary>

waterbox/emulibc/waterboxcore.h

@@ -21,7 +21,7 @@ typedef struct
 	void* Data;
 	const char* Name;
 	int64_t Size;
-	int32_t Flags;
+	int64_t Flags;
 } MemoryArea;
 
 #define MEMORYAREA_FLAGS_WRITABLE 1