Enabled virtual build for Technomancy/Atreus2

Signed-off-by: Florian Fleissner <florian.fleissner@inpartik.de>

src/kaleidoscope/device/technomancy/Atreus2.cpp

@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef KALEIDOSCOPE_VIRTUAL_BUILD
 #ifdef ARDUINO_AVR_ATREUS2
 
 #include <Kaleidoscope.h>
@@ -33,3 +34,4 @@ ATMEGA_KEYSCANNER_BOILERPLATE
 kaleidoscope::device::technomancy::Atreus2 &Atreus2 = kaleidoscope_internal::device;
 
 #endif
+#endif // ifndef KALEIDOSCOPE_VIRTUAL_BUILD