Update pico-sdk to 1.1.2 Add methods to block the opposite core while doing flash updates. Ensure opposite core is stopped in LittleFS and EEPROM while doing flash updates. Update documentation with new calls.
Pull in the ESP8266 File/Dir/etc. filesystem and port LittleFS and SD/SDFS to the RP2040. See https://arduino-esp8266.readthedocs.io/en/latest/filesystem.html for more information