[nrf fromtree] dts: bindings: arm: nordic: tddconf: Add etrbuffer#2218

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

karstenkoenig:tddconf_flexible_etrbufferkarstenkoenig/sdk-zephyr:tddconf_flexible_etrbufferCopy head branch name to clipboard