Add esp32s2psram dev target with mbedTLS PSRAM override#1202
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Tasmota's prebuilt mbedTLS sets CONFIG_MBEDTLS_INTERNAL_MEM_ALLOC=1, which forces every TLS allocation into internal SRAM and ignores PSRAM even when it's available. Override the calloc/free hooks at runtime so SSL record buffers and BIGNUM workspace land in PSRAM, freeing ~40 KB of internal heap during an active TLS session. The override is gated by both the BOARD_HAS_PSRAM compile flag and a runtime ESP.getPsramSize() > 0 check, so production board profiles (esp32dev, esp32-solo1, esp32-s2-saola-1, esp32-c3-devkitm-1, esp32-s3-devkitc-1 — none of which define BOARD_HAS_PSRAM) are completely unaffected. Fallback to MALLOC_CAP_INTERNAL preserves today's behavior if PSRAM allocation ever fails. Also adds an [env:esp32s2psram] platformio.ini target for the Wemos S2 Mini (lolin_s2_mini, ESP32-S2FNR2) used for dev/testing.
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Adds an
esp32s2psrambuild env for ESP32-S2 boards with PSRAM, including an mbedTLS PSRAM allocation override. Dev/build target only; not part of the release matrix. Builds clean (and esp32 unaffected).