♻️ Refactor STM32 ini files (#22377)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

ini/stm32h7.ini

@@ -0,0 +1,41 @@
+#
+# Marlin Firmware
+# PlatformIO Configuration File
+#
+
+#################################
+#
+# STM32H7 Architecture
+#
+# Naming Example: STM32H743IIT6
+#
+#   H : High Performance
+#   7 : Cortex M7 core
+#  43 : Line/Features
+#   I : 176 pins
+#   I : 2048KB Flash-memory
+#   T : LQFP package
+#   6 : -40...85°C   (7: ...105°C)
+#
+#################################
+
+#
+# BigTreeTech SKR SE BX (STM32H743IIT6 ARM Cortex-M7)
+#
+[env:BTT_SKR_SE_BX]
+platform           = ${common_stm32.platform}
+extends            = stm32_variant
+platform_packages  = ${stm_flash_drive.platform_packages}
+board              = marlin_BTT_SKR_SE_BX
+board_build.offset = 0x20000
+build_flags        = ${stm32_variant.build_flags} ${stm_flash_drive.build_flags}
+                    -DUSE_USBHOST_HS
+                    -DUSE_USB_HS_IN_FS
+                    -DHAL_DMA2D_MODULE_ENABLED
+                    -DHAL_LTDC_MODULE_ENABLED
+                    -DHAL_SDRAM_MODULE_ENABLED
+                    -DHAL_QSPI_MODULE_ENABLED
+                    -DHAL_MDMA_MODULE_ENABLED
+                    -DHAL_SD_MODULE_ENABLED
+upload_protocol    = cmsis-dap
+debug_tool         = cmsis-dap