More board name cleanup

Marlin/src/pins/pins_AZTEEG_X5_MINI.h

 #endif
 
 #ifndef BOARD_NAME
-  #define BOARD_NAME        "Azteeg X5 MINI"
+  #define BOARD_NAME      "Azteeg X5 MINI"
 #endif
 #define BOARD_WEBSITE_URL "http://www.panucatt.com/azteeg_X5_mini_reprap_3d_printer_controller_p/ax5mini.htm"
 

Marlin/src/pins/pins_BEAST.h

  * 21017 Victor Perez Marlin for stm32f1 test
  */
 
-#define BOARD_NAME "Beast STM32"
+#define BOARD_NAME           "Beast STM32"
 #define DEFAULT_MACHINE_NAME "STM32F103RET6"
 
 // Enable I2C_EEPROM for testing

Marlin/src/pins/pins_BIGTREE_SKR_MINI_E3.h

   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR MINI E3"
-#endif
+#define BOARD_NAME "BIGTREE SKR Mini E3"
 
 // Release PB3/PB4 (E0 STP/DIR) from JTAG pins
 #define DISABLE_JTAG

Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h

   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR mini V1.1"
-#endif
+#define BOARD_NAME "BIGTREE SKR Mini 1.1"
 
 //#define DISABLE_DEBUG
 #define DISABLE_JTAG

Marlin/src/pins/pins_BIGTREE_SKR_PRO_V1.1.h

   #error "BIGTREE SKR Pro V1.1 supports up to 3 hotends / E-steppers."
 #endif
 
-#define BOARD_NAME "BIGTREE SKR Pro V1.1"
+#define BOARD_NAME "BIGTREE SKR Pro 1.1"
 
 #define SRAM_EEPROM_EMULATION
 

Marlin/src/pins/pins_BIGTREE_SKR_V1.1.h

   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR V1.1"
-#endif
+#define BOARD_NAME "BIGTREE SKR 1.1"
 
 //
 // Limit Switches

Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h

   #error "Oops!  Make sure you have the LPC1768 environment selected in your IDE."
 #endif
 
-#ifndef BOARD_NAME
-  #define BOARD_NAME "BIGTREE SKR V1.3"
-#endif
+#define BOARD_NAME "BIGTREE SKR 1.3"
 
 // Ignore temp readings during development.
 //#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000