manifest: Update sdk-zephyr#17972

adamkondraciuk wants to merge 1 commit intonrfconnect:mainnrfconnect/sdk-nrf:mainfrom

adamkondraciuk:NRFX-6553-Fix-TLS-handling-for-s2ramadamkondraciuk/sdk-nrf:NRFX-6553-Fix-TLS-handling-for-s2ramCopy head branch name to clipboard