Allow override of CONTROLLERFAN_PIN with RAMPS EFF

Marlin/pins.h

@@ -214,6 +214,9 @@
 #ifndef FAN2_PIN
   #define FAN2_PIN -1
 #endif
+#ifndef CONTROLLERFAN_PIN
+  #define CONTROLLERFAN_PIN  -1
+#endif
 
 #ifndef HEATER_0_PIN
   #define HEATER_0_PIN -1

Marlin/pins_RAMPS.h

@@ -159,7 +159,6 @@
 #elif ENABLED(IS_RAMPS_EFF)                    // Hotend, Fan, Fan
   #define FAN_PIN        RAMPS_D9_PIN
   #define FAN1_PIN       RAMPS_D8_PIN
-  #define CONTROLLERFAN_PIN  -1
 #elif ENABLED(IS_RAMPS_SF)                     // Spindle, Fan
   #define FAN_PIN        RAMPS_D8_PIN
 #else                                          // Non-specific are "EFB" (i.e., "EFBF" or "EFBE")