spiffs: update submodule to fix SPIFFS_readdir errno issue

See https://github.com/pellepl/spiffs/pull/288 for the description of the issue.
Reported in https://github.com/esp-rs/rust/issues/117#issuecomment-1142159661
This commit is contained in:
Martin Vychodil
2022-06-22 15:36:01 +02:00
parent 6c5fb29c2c
commit 1736fdf256