Default zero dot display register to the 24 bit integer limit (#1968)

* 0 dot disp defaults to the 24 bit integer limit

* useless correction

it goes through the reset function to set the variable on boot anyway but why not have the initialized state be correct too

src/GPU3D.cpp

@@ -192,7 +192,7 @@ void GPU3D::Reset() noexcept
 
     CmdStallQueue.Clear();
 
-    ZeroDotWLimit = 0; // CHECKME
+    ZeroDotWLimit = 0xFFFFFF;
 
     GXStat = 0;
 

src/GPU3D.h

@@ -197,7 +197,7 @@ public:
 
     FIFO<CmdFIFOEntry, 64> CmdStallQueue {};
 
-    u32 ZeroDotWLimit = 0;
+    u32 ZeroDotWLimit = 0xFFFFFF;
 
     u32 GXStat = 0;