BTT002 release V1 uses STM32F407VGT6 (#17387)

Marlin/src/core/boards.h

 #define BOARD_BLACK_STM32F407ZE       4206  // BLACK_STM32F407ZE
 #define BOARD_STEVAL_3DP001V1         4207  // STEVAL-3DP001V1 3D PRINTER BOARD
 #define BOARD_BTT_SKR_PRO_V1_1        4208  // BigTreeTech SKR Pro v1.1 (STM32F407ZG)
-#define BOARD_BTT_BTT002_V1_0         4209  // BigTreeTech BTT002 v1.0 (STM32F407VE)
+#define BOARD_BTT_BTT002_V1_0         4209  // BigTreeTech BTT002 v1.0 (STM32F407VG)
 #define BOARD_BTT_GTR_V1_0            4210  // BigTreeTech GTR v1.0 (STM32F407IGT)
 #define BOARD_LERDGE_K                4211  // Lerdge K (STM32F407ZG)
 #define BOARD_LERDGE_X                4212  // Lerdge X (STM32F407VE)

buildroot/share/PlatformIO/boards/BigTree_Btt002.json

       ]
     ],
     "ldscript": "stm32f407xg.ld",
-    "mcu": "stm32f407vet6",
+    "mcu": "stm32f407vgt6",
     "variant": "BIGTREE_BTT002"
   },
   "debug": {
-    "jlink_device": "STM32F407VE",
+    "jlink_device": "STM32F407VG",
     "openocd_target": "stm32f4x",
     "svd_path": "STM32F40x.svd"
   },
   "frameworks": [
     "arduino"
   ],
-  "name": "STM32F407VE (192k RAM. 512k Flash)",
+  "name": "STM32F407VG (192k RAM. 1024k Flash)",
   "upload": {
     "disable_flushing": false,
     "maximum_ram_size": 131072,
-    "maximum_size": 524288,
+    "maximum_size": 1048576,
     "protocol": "stlink",
     "protocols": [
       "stlink",
     "use_1200bps_touch": false,
     "wait_for_upload_port": false
   },
-  "url": "http://www.st.com/en/microcontrollers/stm32f407ve.html",
+  "url": "http://www.st.com/en/microcontrollers/stm32f407vg.html",
   "vendor": "Generic"
 }

buildroot/share/tests/BIGTREE_BTT002-tests

 #!/usr/bin/env bash
 #
-# Build tests for STM32F407VET6 BigTreeTech BTT002
+# Build tests for STM32F407VGT6 BigTreeTech BTT002 V1.0
 #
 
 # exit on first failure

platformio.ini

 monitor_speed     = 250000
 
 #
-# BigTreeTech BTT002 (STM32F407VET6 ARM Cortex-M4)
+# BigTreeTech BTT002 V1.0 (STM32F407VGT6 ARM Cortex-M4)
 #
 [env:BIGTREE_BTT002]
 platform          = ststm32@5.6.0
 board             = BigTree_Btt002
 platform_packages = framework-arduinoststm32@>=3.107,<4
 build_flags       = ${common.build_flags}
-  -DUSBCON -DUSBD_USE_CDC -DUSBD_VID=0x0483 -DUSB_PRODUCT=\"STM32F407VE\"
+  -DUSBCON -DUSBD_USE_CDC -DUSBD_VID=0x0483 -DUSB_PRODUCT=\"STM32F407VG\"
   -DTARGET_STM32F4 -DSTM32F407_5VX -DVECT_TAB_OFFSET=0x8000
   -DHAVE_HWSERIAL2
   -DHAVE_HWSERIAL3