ZONESTAR_LCD warning for RAMPS / ReARM (#20702)

Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h

   #define LCD_PINS_ENABLE                  P0_18  // J3-10 & AUX-3 (SID, MOSI)
   #define LCD_PINS_D4                      P2_06  // J3-8 & AUX-3 (SCK, CLK)
 
+#elif ENABLED(ZONESTAR_LCD)
+
+  #error "CAUTION! ZONESTAR_LCD on REARM requires wiring modifications. NB. ADCs are not 5V tolerant. Comment out this line to continue."
+
 #elif IS_TFTGLCD_PANEL
 
   #if ENABLED(TFTGLCD_PANEL_SPI)

Marlin/src/pins/ramps/pins_RAMPS.h

 
     #elif ENABLED(ZONESTAR_LCD)
 
+      #error "CAUTION! ZONESTAR_LCD on RAMPS requires wiring modifications. It plugs into AUX2 but GND and 5V need to be swapped. Comment out this line to continue."
       #define LCD_PINS_RS                     64
       #define LCD_PINS_ENABLE                 44
       #define LCD_PINS_D4                     63

buildroot/tests/mega2560-tests

 opt_set TEMP_SENSOR_2 1
 opt_set TEMP_SENSOR_3 1
 opt_set TEMP_SENSOR_4 1
-opt_enable ZONESTAR_LCD Z_PROBE_SERVO_NR Z_SERVO_ANGLES DEACTIVATE_SERVOS_AFTER_MOVE BOOT_MARLIN_LOGO_ANIMATED \
+opt_enable VIKI2 Z_PROBE_SERVO_NR Z_SERVO_ANGLES DEACTIVATE_SERVOS_AFTER_MOVE BOOT_MARLIN_LOGO_ANIMATED \
            AUTO_BED_LEVELING_3POINT DEBUG_LEVELING_FEATURE EEPROM_SETTINGS EEPROM_CHITCHAT M114_DETAIL \
            NO_VOLUMETRICS EXTENDED_CAPABILITIES_REPORT AUTO_REPORT_TEMPERATURES AUTOTEMP G38_PROBE_TARGET JOYSTICK \
            DIRECT_STEPPING DETECT_BROKEN_ENDSTOP \

buildroot/tests/sanguino1284p-tests

 set -e
 
 #
-# Build with the default configurations
+# Start with default configurations...
 #
 restore_configs
 opt_set MOTHERBOARD BOARD_SANGUINOLOLU_12
 opt_set CONTROLLER_FAN_PIN 27
 exec_test $1 $2 "Default Configuration | MINIPANAL | CONTROLLER_FAN" "$3"
 
+#
+# Start with default configurations...
+#
+restore_configs
+opt_set MOTHERBOARD BOARD_MELZI
+opt_enable ZONESTAR_LCD
+exec_test $1 $2 "Default Configuration | ZONESTAR_LCD " "$3"
 
 # clean up
 restore_configs