Use a macro for HAL header redirection (#10380)

Marlin/src/HAL/HAL_STM32F7/endstop_interrupts.h

@@ -26,6 +26,17 @@
 #ifndef _ENDSTOP_INTERRUPTS_H_
 #define _ENDSTOP_INTERRUPTS_H_
 
+volatile uint8_t e_hit = 0; // Different from 0 when the endstops should be tested in detail.
+                            // Must be reset to 0 by the test function when finished.
+
+// This is what is really done inside the interrupts.
+FORCE_INLINE void endstop_ISR_worker( void ) {
+  e_hit = 2; // Because the detection of a e-stop hit has a 1 step debouncer it has to be called at least twice.
+}
+
+// One ISR for all EXT-Interrupts
+void endstop_ISR(void) { endstop_ISR_worker(); }
+
 void setup_endstop_interrupts(void) {
   #if HAS_X_MAX
     pinMode(X_MAX_PIN, INPUT);