manifest: sdk-zephyr: modem: modem_cellular: Configurable MTU for CMUX#21114

SeppoTakalo merged 1 commit intonrfconnect:mainnrfconnect/sdk-nrf:mainfrom

NordicBuilder:auto-manifest-sdk-zephyr-2661NordicBuilder/sdk-nrf:auto-manifest-sdk-zephyr-2661Copy head branch name to clipboard