ESP32-S3: IRAM and DRAM regions overlapping in Linker Script

[gustavonihei]

ESP32-S3 implementation presents an issue similar to #160, but instead of the whole Internal RAM, only a part of it (Internal SRAM 1) is shared between IRAM and DRAM, as shown in the following table from the ESP32-S3 TRM:

Relevant information:

Application image linker scripts for ESP32-S3

• Internal RAM regions: https://github.com/espressif/esp-idf/blob/bcb34ca7aef4e8d3b97d75ad069b960fb1c17c16/components/esp_system/ld/esp32s3/memory.ld.in#L25-L52
• Dummy output section representing the overlap between IRAM and DRAM: https://github.com/espressif/esp-idf/blob/bcb34ca7aef4e8d3b97d75ad069b960fb1c17c16/components/esp_system/ld/esp32s3/sections.ld.in#L177-L184

Bootloader linker script for ESP32-S3

• https://github.com/espressif/esp-idf/blob/master/components/bootloader/subproject/main/ld/esp32s3/bootloader.ld#L6-L17