DOL/ELF loaders: enable HID4.SBE in Wii mode

When booting "cooked" executables, BATs should already be set up and
enabled. They should only really be disabled when booting NAND contents
in real mode.

Source/Core/Core/Boot/Boot.cpp

@@ -381,6 +381,8 @@ bool CBoot::BootUp()
       PowerPC::ppcState.spr[SPR_DBAT4L] = 0x10000002;
       PowerPC::ppcState.spr[SPR_DBAT5U] = 0xd0001fff;
       PowerPC::ppcState.spr[SPR_DBAT5L] = 0x1000002a;
+      if (dolLoader.IsWii())
+        HID4.SBE = 1;
       PowerPC::DBATUpdated();
       PowerPC::IBATUpdated();
 

Source/Core/Core/Boot/Boot_ELF.cpp

@@ -85,6 +85,8 @@ bool CBoot::Boot_ELF(const std::string& filename)
   PowerPC::ppcState.spr[SPR_DBAT4L] = 0x10000002;
   PowerPC::ppcState.spr[SPR_DBAT5U] = 0xd0001fff;
   PowerPC::ppcState.spr[SPR_DBAT5L] = 0x1000002a;
+  if (IsElfWii(filename))
+    HID4.SBE = 1;
   PowerPC::DBATUpdated();
   PowerPC::IBATUpdated();