Patch pins files hotends/e-steppers sanity check

Marlin/pins_AZTEEG_X3.h

@@ -24,8 +24,8 @@
  * AZTEEG_X3 Arduino Mega with RAMPS v1.4 pin assignments
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "Azteeg X3 supports up to 2 hotends. Comment this line to keep going."
+  #error "Azteeg X3 supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "Azteeg X3"

Marlin/pins_BAM_DICE_DUE.h

@@ -24,8 +24,8 @@
  * BAM&DICE Due (Arduino Mega) pin assignments
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "2PrintBeta Due supports up to 2 hotends. Comment this line to keep going."
+  #error "2PrintBeta Due supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "2PrintBeta Due"

Marlin/pins_FELIX2.h

@@ -24,8 +24,8 @@
  * FELIXprinters v2.0/3.0 (RAMPS v1.4) pin assignments
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "Felix 2.0+ supports up to 2 hotends. Comment this line to keep going."
+  #error "Felix 2.0+ supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "Felix 2.0+"

Marlin/pins_MEGACONTROLLER.h

@@ -28,8 +28,8 @@
   #error "Oops!  Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu."
 #endif
 
-#if E_STEPPERS > 2 || HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "Mega Controller supports up to 2 hotends / E-steppers. Comment this line to keep going."
+  #error "Mega Controller supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "Mega Controller"

Marlin/pins_MINITRONICS.h

@@ -28,8 +28,8 @@
   #error "Oops!  Make sure you have 'Minitronics' selected from the 'Tools -> Boards' menu."
 #endif
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "Minitronics supports up to 2 hotends. Comment this line to keep going."
+  #error "Minitronics supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME         "Minitronics v1.0 / v1.1"

Marlin/pins_MKS_13.h

@@ -29,8 +29,8 @@
  *  MKS v1.4  (Extruder, Extruder, Fan, Bed)
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "MKS 1.3/1.4 supports up to 2 hotends. Comment this line to keep going."
+  #error "MKS 1.3/1.4 supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "MKS > v1.3"

Marlin/pins_MKS_BASE.h

@@ -24,8 +24,8 @@
  * MKS BASE 1.0 – Arduino Mega2560 with RAMPS v1.4 pin assignments
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "MKS BASE 1.0 supports up to 2 hotends. Comment this line to keep going."
+  #error "MKS BASE 1.0 supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "MKS BASE 1.0"

Marlin/pins_RUMBA.h

@@ -28,8 +28,8 @@
   #error "Oops!  Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu."
 #endif
 
-#if E_STEPPERS > 3 || HOTENDS > 3
+#if HOTENDS > 3 || E_STEPPERS > 3
-  #error "RUMBA supports up to 3 hotends / E-steppers. Comment this line to keep going."
+  #error "RUMBA supports up to 3 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define DEFAULT_MACHINE_NAME "Rumba"

Marlin/pins_SAINSMART_2IN1.h

@@ -24,8 +24,8 @@
  *  Sainsmart 2-in-1 pin assignments
  */
 
-#if HOTENDS > 2
+#if HOTENDS > 2 || E_STEPPERS > 2
-  #error "Sainsmart 2-in-1 supports up to 2 hotends. Comment this line to keep going."
+  #error "Sainsmart 2-in-1 supports up to 2 hotends / E-steppers. Comment out this line to continue."
 #endif
 
 #define BOARD_NAME "Sainsmart"