Zabbix: update to 2.2.1

With this new version of zabbix we do not need
uname and hostname anymore, see
https://svn.zabbix.com/browse/ZBX-5616
Only compile tested for now

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39489 3c298f89-4303-0410-b956-a3cf2f4a3e73
zabbix-extra-mac80211: fix mac80211.phydiscovery

/sys/kernel/debug/ is now only accessible to root,
use zabbix_helper_mac80211 (suid helper) to compute
mac80211.phydiscovery (the discovery rule)

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39490 3c298f89-4303-0410-b956-a3cf2f4a3e73