Move to proper I2C handling (#7848)

* Rework I2C handling

radio/src/gui/480x272/radio_diaganas.cpp

@@ -19,7 +19,8 @@
  */
 
 #include "opentx.h"
-#if defined(RADIO_TX16S)
+#if defined(HARDWARE_TOUCH)
+#include "touch.h"
 #include "tp_gt911.h"
 #include <math.h>
 #endif
@@ -71,7 +72,7 @@ bool menuRadioDiagAnalogs(event_t event)
     lcdDrawText(MENUS_MARGIN_LEFT, MENU_CONTENT_TOP + 7 * FH, STR_TOUCH_PANEL);
   }
 
-  if (touchPanelEvent) {
+  if (touchPanelEventOccured()) {
     touchPanelRead();
     lcdDrawNumber(lcdNextPos + 1, MENU_CONTENT_TOP + 7 * FH, touchState.x);
     lcdDrawText(lcdNextPos, MENU_CONTENT_TOP + 7 * FH, ", ");