feat(misc/ssi_psram): Add octal psram (QEMU-231)

[Throows]

Description

This MR add the octal PSRAM for the ESP32S3

Related

Feature for the #109 issue.

Testing

Just run the simple hello world program from esp-idf (V5.3.2)

Without octal ram you can launch QEMU with the command :

./qemu-system-xtensa \
        -machine esp32s3 \
        -nographic \
        -s -S \
        -drive file=merged-binary.bin,if=mtd,format=raw \
        -m 8M

With octal PSRAM you can launch QEMU with the command :

./qemu-system-xtensa \
        -machine esp32s3 \
        -nographic \
        -s -S \
        -drive file=merged-binary.bin,if=mtd,format=raw \
        -m 16M \
        -global driver=ssi_psram,property=is_octal,value=true

---

NOTA BENE: I removed the possibility to configure the dummy. its now handled automatically by the software... is it a good idea ? (Introcuced bug with esp32)

Best regards, Romain

Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

[igrr]

Cherry-picked with a small fixup in 48b3fa9, thanks @Throows!