WFSI: Implement GET_VERSION.

This ioctl writes a constant value to the output buffer.

Source/Core/Core/IOS/WFS/WFSI.cpp

@@ -311,6 +311,11 @@ IPCCommandResult WFSI::IOCtl(const IOCtlRequest& request)
     WARN_LOG(IOS_WFS, "IOCTL_WFSI_DELETE_TITLE: unimplemented");
     break;
 
+  case IOCTL_WFSI_GET_VERSION:
+    INFO_LOG(IOS_WFS, "IOCTL_WFSI_GET_VERSION");
+    Memory::Write_U32(0x20, request.buffer_out);
+    break;
+
   case IOCTL_WFSI_IMPORT_TITLE_CANCEL:
   {
     INFO_LOG(IOS_WFS, "IOCTL_WFSI_IMPORT_TITLE_CANCEL");

Source/Core/Core/IOS/WFS/WFSI.h

@@ -97,6 +97,9 @@ private:
     IOCTL_WFSI_FINALIZE_TITLE_INSTALL = 0x06,
 
     IOCTL_WFSI_DELETE_TITLE = 0x17,
+
+    IOCTL_WFSI_GET_VERSION = 0x1b,
+
     IOCTL_WFSI_IMPORT_TITLE_CANCEL = 0x2f,
 
     IOCTL_WFSI_INIT = 0x81,