Provide a SERVO0_PIN for non-standard LCD

Marlin/src/pins/pins_ANET_10.h

@@ -155,36 +155,38 @@
 #if ENABLED(ULTRA_LCD) && ENABLED(NEWPANEL)
   #define LCD_SDSS           28
   #if ENABLED(ADC_KEYPAD)
-    #define SERVO0_PIN         27 // free for BLTouch/3D-Touch
+    #define SERVO0_PIN       27 // free for BLTouch/3D-Touch
-    #define LCD_PINS_RS        28
+    #define LCD_PINS_RS      28
-    #define LCD_PINS_ENABLE    29
+    #define LCD_PINS_ENABLE  29
-    #define LCD_PINS_D4        10
+    #define LCD_PINS_D4      10
-    #define LCD_PINS_D5        11
+    #define LCD_PINS_D5      11
-    #define LCD_PINS_D6        16
+    #define LCD_PINS_D6      16
-    #define LCD_PINS_D7        17
+    #define LCD_PINS_D7      17
-    #define BTN_EN1            -1
+    #define BTN_EN1          -1
-    #define BTN_EN2            -1
+    #define BTN_EN2          -1
-    #define BTN_ENC            -1
+    #define BTN_ENC          -1
-    #define ADC_KEYPAD_PIN      1
+    #define ADC_KEYPAD_PIN    1
     #define ENCODER_FEEDRATE_DEADZONE 2
   #elif ENABLED(REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER) || ENABLED(ANET_FULL_GRAPHICS_LCD)
     // Pin definitions for the Anet A6 Full Graphics display and the RepRapDiscount Full Graphics
     // display using an adapter board  // https://go.aisler.net/benlye/anet-lcd-adapter/pcb
     // See below for alternative pin definitions for use with https://www.thingiverse.com/thing:2103748
-    #define SERVO0_PIN         29 // free for BLTouch/3D-Touch
+    #define SERVO0_PIN       29 // free for BLTouch/3D-Touch
-    #define BEEPER_PIN         17
+    #define BEEPER_PIN       17
-    #define LCD_PINS_RS        27
+    #define LCD_PINS_RS      27
-    #define LCD_PINS_ENABLE    28
+    #define LCD_PINS_ENABLE  28
-    #define LCD_PINS_D4        30
+    #define LCD_PINS_D4      30
-    #define BTN_EN1            11
+    #define BTN_EN1          11
-    #define BTN_EN2            10
+    #define BTN_EN2          10
-    #define BTN_ENC            16
+    #define BTN_ENC          16
     #define ST7920_DELAY_1 DELAY_0_NOP
     #define ST7920_DELAY_2 DELAY_1_NOP
     #define ST7920_DELAY_3 DELAY_2_NOP
     #define STD_ENCODER_PULSES_PER_STEP 4
     #define STD_ENCODER_STEPS_PER_MENU_ITEM 1
   #endif
+#else
+  #define SERVO0_PIN         27
 #endif  // ULTRA_LCD && NEWPANEL
 
 /**