make_netboot: Revise to work with Depthcharge.

The '' was designed for U-Boot, but all active projects
today are all using depthcharge. So, it should be safe to deprecate the
U-Boot logic:

 - The firmware name should be (Depthcharge) instead of
   nv_image*.bin (U-Boot style)
 - The copied kernel should be named as "vmlinuz", by Depthcharge's
   default configuration.

TEST=./ --board gale;
     boot vmlinuz image.

Change-Id: I7a98045873030ae3c7ff53b158b02f9d024f655e
Commit-Ready: Hung-Te Lin <>
Tested-by: Hung-Te Lin <>
Reviewed-by: Wei-Han Chen <>
1 file changed