Fix #205: Multiple DHCP network interfaces fail to initialize

[benok]

This fixes #205.
Removed goroutine as you suggested.

• log from system-docker logs network

[            ] netconf:info: Apply Network Config
[            ] netconf:info: Running DHCP on eth0: dhcpcd -MA4 --timeout 10 -w --debug eth0
dhcpcd-10.0.1 starting
spawned manager process on PID 523
udev: starting
dev: loaded udev
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks PREINIT
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks NOCARRIER
eth0: waiting for carrier
eth0: carrier acquired
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks CARRIER
eth0: delaying IPv4 for 0.9 seconds
eth0: using ClientID 01:bc:24:11:ec:1f:5a
eth0: reading lease: /var/db/dhcpcd/eth0.lease
eth0: rebinding lease of 10.24.200.147
eth0: sending REQUEST (xid 0xd00f15bd), next in 3.4 seconds
eth0: acknowledged 10.24.200.147 from 10.24.0.254
eth0: leased 10.24.200.147 for 86400 seconds
eth0: renew in 43200 seconds, rebind in 75600 seconds
eth0: writing lease: /var/db/dhcpcd/eth0.lease
eth0: adding IP address 10.24.200.147/16 broadcast 10.24.255.255
eth0: adding route to 10.24.0.0/16
eth0: adding default route via 10.24.0.254
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks REBOOT
forked to background, child pid 523
[            ] netconf:info: Running DHCP on eth1: dhcpcd -MA4 --timeout 10 -w --debug eth1
sending commands to dhcpcd process
send OK
[            ] netconf:info: Checking to see if DNS was set by DHCP
[            ] netconf:info: dns testing eth0
[            ] netconf:info: dns was dhcp set for eth0
[            ] netconf:info: dns testing eth1
[            ] netconf:info: Running command /var/lib/iptables/rules.sh []
[            ] netconf:info: DNS set by DHCP
[            ] netconf:info: Apply Network Config SyncHostname
[            ] netconf:info: Restart syslog

[olljanat]

Look good now but did you verified that also two NICs DHCP works without issues?

[benok]

Sure.
I just tested in one environment, but I rebooted three times without any issues.