Ender-3 S1 STM32F4 board

Used platformio with some special build flags (also this) to save precious memory to build Marlin 2.1.2

• T1 + LA
• T1 + UBL + LA
• T13 + UBL + LA
• T13 + LA (HEATER_0_MAXTEMP = 315, BED_MAXTEMP = 135)
• T13 + LA + MPC
• T13 + LA + DACAI (HEATER_0_MAXTEMP = 315, BED_MAXTEMP = 130)

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klipper is much better tho