Use the right mode (aka BOX) - replaces autotune mode. This will help

with migrations.

src/main/io/rc_controls.h

@@ -41,14 +41,13 @@ typedef enum {
     BOXGOV,
     BOXOSD,
     BOXTELEMETRY,
-    // BOXAUTOTUNE,
+    BOXGTUNE,
     BOXSONAR,
     BOXSERVO1,
     BOXSERVO2,
     BOXSERVO3,
     BOXBLACKBOX,
     BOXFAILSAFE,
-    BOXGTUNE,
     CHECKBOX_ITEM_COUNT
 } boxId_e;