submodule: bump openthread from `f12dfaf` to `9f6921c` #1593

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
pretty	21s
arm-gcc-4	8m 6s
arm-gcc-5	8m 21s
arm-gcc-6	8m 23s
arm-gcc-7	8m 22s
arm-gcc-9	8m 25s
	41m 58s