ESP32-C3: Add SPI Slave peripheral driver

[gustavonihei]

Summary

This PR intends to add driver support for the SPI Slave peripheral of the ESP32-C3 microcontroller.
Currently it is restricted to non-DMA operation.

Impact

New feature, no impact if not selected.

Testing

Validated using a setup according to the following description:

• Two interconnected ESP32-C3 DevKit boards via the SPI interface
  • One assuming the Master role, the other as Slave
• SPI Master sending data via spi tool application
• SPI Slave with a custom app reading data from SPI Slave chardev driver and replying back to SPI Master
• SPI Master receiving reply as part of the next TX transfer