Avoid infinite loops in ni_lldp_agent_update

Signed-off-by: Olaf Hering <olaf@aepfle.de>
lldp: disabled lldp support (fate#313671)
Merge pull request #209 from olafhering/olh-misc
Merge pull request #210 from mtomaschewski/lldp

lldp: disabled lldp support (fate#313671) -- rejected feature
autoip4: create instance for supported devices only
dhcp4: create instance for supported devices only
dhcp6: create instance for supported devices only
autoip4: fixed supported devices only check
ChangeLog: generate from git while make dist
Merge pull request #213 from mtomaschewski/devchecks