[nrf fromtree] tests: fs: littlefs: Fix nRF54L15-based dtc overlay files#3118

nordicjm merged 1 commit intonrfconnect:mainnrfconnect/sdk-zephyr:mainfrom

nordicjm:settingsfilethingnordicjm/sdk-zephyr:settingsfilethingCopy head branch name to clipboard