fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git
(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
The most recent developer of netdiscover had self-hosted downloads
but also put the project on SourceForge. The self-hosted site went
down but SourceForge is much more reliable so I have moved the
download URI to SourceForge (md5sum is the same).
Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>