Fix, clarify LCD_TIMEOUT_TO_STATUS

Replaces #17887

Co-Authored-By: Daniel Callander <knifa@users.noreply.github.com>

Marlin/src/lcd/ultralcd.h

@@ -508,7 +508,11 @@ public:
     #endif
 
     FORCE_INLINE static void defer_status_screen(const bool defer=true) {
-      TERN(LCD_TIMEOUT_TO_STATUS, defer_return_to_status = defer, UNUSED(defer));
+      #if LCD_TIMEOUT_TO_STATUS > 0
+        defer_return_to_status = defer;
+      #else
+        UNUSED(defer);
+      #endif
     }
 
     static inline void goto_previous_screen_no_defer() {
@@ -612,7 +616,7 @@ private:
 
   #if HAS_SPI_LCD
     #if HAS_LCD_MENU
-      #if LCD_TIMEOUT_TO_STATUS
+      #if LCD_TIMEOUT_TO_STATUS > 0
         static bool defer_return_to_status;
       #else
         static constexpr bool defer_return_to_status = false;