Implement HAS_PHYSICAL_KEYBOARD for devices with physical keyboards (#9071)

- Implement HAS_PHYSICAL_KEYBOARD for devices with physical keyboards
- Add HAS_PHYSICAL_KEYBOARD to variant.h for:
  - TDeck
  - TLora Pager
  - TDeck Pro

src/main.cpp

@@ -1465,8 +1465,10 @@ void setup()
 #endif
 
 #if defined(HAS_TRACKBALL) || (defined(INPUTDRIVER_ENCODER_TYPE) && INPUTDRIVER_ENCODER_TYPE == 2)
+#ifndef HAS_PHYSICAL_KEYBOARD
     osk_found = true;
 #endif
+#endif
 
 #if defined(ARCH_ESP32) && !MESHTASTIC_EXCLUDE_WEBSERVER
     // Start web server thread.