Fysetc S6 pins / LCD updates (#16830)

Marlin/src/pins/stm32/pins_FYSETC_S6.h

@@ -48,6 +48,11 @@
   #define E2END 0xFFF // 4KB
 #endif
 
+//
+// Servos
+//
+#define SERVO0_PIN         PA3
+
 //
 // Limit Switches
 //
@@ -59,10 +64,11 @@
 #define Z_MAX_PIN          PA3
 
 //
-// Servos
-// share with Z_MAX_PIN
+// Filament Sensor
 //
-#define SERVO0_PIN         PA3
+#ifndef FIL_RUNOUT_PIN
+  #define FIL_RUNOUT_PIN   PA1
+#endif
 
 //
 // Steppers
@@ -160,6 +166,7 @@
 //#define KILL_PIN           PC5
 
 #define SDSS               PA4
+#define SD_DETECT_PIN  	   PB10
 
 //
 // LCD / Controller
@@ -189,7 +196,6 @@
 
     #define BTN_EN1        PC6
     #define BTN_EN2        PC7
-    #define SD_DETECT_PIN  PB10
 
     #define LCD_SDSS       PA4