picolibc: Update to version proposed for Zephyr main#977

stephanosio merged 1 commit intozephyrproject-rtos:v0.17-branchzephyrproject-rtos/sdk-ng:v0.17-branchfrom

keith-packard:picolibc-for-0.17.3keith-packard/sdk-ng:picolibc-for-0.17.3Copy head branch name to clipboard