Change weekly crons to "@weekly", hourly to daily

@weekly will provide automatic load balancing from Jenkins, rather
than running all jobs at the same time. As for docker jobs, hourly
is simply more frequent than is necessary, putting an unnecessary
strain on resources.

Change-Id: Ib370637c561d67a7ac3befe2eb3889c3c2b68b69
Signed-off-by: Eric Ball <eball@linuxfoundation.org>