add tinyui for lilygo t-echo card

variants/lilygo_techo_card/target.h

@@ -10,7 +10,7 @@
 #include <helpers/sensors/EnvironmentSensorManager.h>
 #include <helpers/sensors/LocationProvider.h>
 #ifdef DISPLAY_CLASS
-  #include <helpers/ui/SSD1306Display.h>
+  #include <helpers/ui/U8g2Display.h>
   #include <helpers/ui/MomentaryButton.h>
 #endif