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