On ESP32 esp-storage doesn't work together with PSRAM (psram feature flag enabled)

[yanshay]

Bug description

On ESP32 When trying to read from flash storage using esp-storage, data isn't read correctly if psram feature flag is enabled.
More detailed information is available in: #3220

A summary of the technical root cause from @bjoernQ in that discussion:

esp-storage is accessing SPI0 and SPI1 directly on ESP32 and having PSRAM enabled might get them into unexpected states.

For S2/S3 we are using ROM-functions which apparently account for that

To Reproduce

The example at examples/src/bin/flash_read_write.rs doesn't work if psram is enabled.

Environment

• Target device: ESP32
• Crate name and version: 0.23.1 and main