package/knock: bump version to 0.7.8

Upstream source repo switched to github.com. Since the last release
dating back to 2014 no new tarball was released so we switch to the
latest github commit.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/knock/knock.hash

@@ -1,2 +1,2 @@
 # locally computed hash
-sha256 9938479c321066424f74c61f6bee46dfd355a828263dc89561a1ece3f56578a4 knock-0.7.tar.gz
+sha256	940a8de61b4b3530560805c3b9310a077c28c99173c2ccb07ff96720b0e93c58	knock-258a27e5a47809f97c2b9f2751a88c2f94aae891.tar.gz

package/knock/knock.mk

@@ -4,8 +4,9 @@
 #
 ################################################################################
 
-KNOCK_VERSION = 0.7
-KNOCK_SITE = http://www.zeroflux.org/proj/knock/files
+KNOCK_VERSION = 258a27e5a47809f97c2b9f2751a88c2f94aae891
+KNOCK_SITE = $(call github,jvinet,knock,$(KNOCK_VERSION))
+KNOCK_AUTORECONF = YES
 KNOCK_LICENSE = GPLv2+
 KNOCK_LICENSE_FILES = COPYING
 KNOCK_DEPENDENCIES = libpcap