Add config option for new board revision

Marlin/Configuration.h

@@ -1949,6 +1949,20 @@
 // Only power servos during movement, otherwise leave off to prevent jitter
 //#define DEACTIVATE_SERVOS_AFTER_MOVE
 
+/**
+ * Select your version of the Trigorilla (RAMPS1.4) board here.
+ *
+ * 0 = Default Trigorilla
+ * 1 = Newer Trigorilla v1.1 (first seen late 2018)
+ *
+ * The only major difference is a slight change on the servo pin mapping.
+ * This setting only is relevant if you want to use BLtouch or similar
+ * mods to be used via servo pins.
+ * The new version is to be identified by a "TRIGORILLA1.1" lettering
+ * on the upper left of the PCB silkscreen.
+ */
+#define TRIGORILLA_VERSION 0
+
 // Enable Anycubic TFT
 #define ANYCUBIC_TFT_MODEL
 #define ANYCUBIC_FILAMENT_RUNOUT_SENSOR

Marlin/pins_TRIGORILLA_14.h

@@ -95,6 +95,7 @@
 #define TEMP_BED_PIN       14
 
 // Servos
+#if TRIGORILLA_VERSION == 0 // Default Trigorilla
   #ifdef NUM_SERVOS
   	#define SERVO0_PIN      11
 
@@ -110,6 +111,23 @@
   		#define SERVO3_PIN    4
   	#endif
   #endif
+#else // Trigorilla 1.1
+  #ifdef NUM_SERVOS
+    #define SERVO0_PIN 5
+
+    #if NUM_SERVOS > 1
+      #define SERVO1_PIN 4
+    #endif
+
+    #if NUM_SERVOS > 2
+      #define SERVO2_PIN 11
+    #endif
+
+    #if NUM_SERVOS > 3
+      #define SERVO3_PIN 6
+    #endif
+  #endif
+#endif // #if TRIGORILLA_VERSION
 
 #if defined(ANYCUBIC_TFT_MODEL) || defined(REPRAP_DISCOUNT_SMART_CONTROLLER)
   #define BEEPER_PIN       31