[Peter: board is from Sinovoip, not Lemaker, move board files,
Use kernel headers from kernel, explicitly use 4.13.3,
drop eth0 dhcp config, cleanup post-build args,
disable tar output format, use u-boot custom format,
add host-dosfstools/mtools for genimage, drop unused
host-uboot-tools/genext2fs]
Signed-off-by: Mike Harmony <mike.harmony@snapav.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
