The host variant of syslinux wasn't exposed anywhere, so the only way
to use it was to know that a "host-syslinux" target existed. Moreover,
thanks to commit 8e0d411898 ('syslinux:
install helper programs to the host'), the host utilities of syslinux
are automatically installed to $(HOST_DIR) when building the target
syslinux.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
ac7f60d872