A task's runtime is currently printed in seconds. Change it to
include minutes and hours for easier reading.
(Bitbake rev: c593ae5ec9fecd4bde823948024e4d56314a60ce)
Signed-off-by: Jacob Kroon <jacob.kroon@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>