Move the source tar balls download to "dl_files" of meta_data.yaml.
The kernel stuff is downloaded via "downloader -s". dl_hook deals with
the kernel stuff locally.
Test Plan:
- PASS: Build kernel-std
- PASS: Build kernel-rt
- PASS: Build intel-opae-fpga
- PASS: Build image
- Pass: Boot system
Story: 2009221
Task: 44577
Signed-off-by: Li Zhou <li.zhou@windriver.com>
Signed-off-by: Yue Tao <Yue.Tao@windriver.com>
Change-Id: Ib63553fb42e96a4eab8b16b47d7b4e2172ffe13c