init-ifupdown: fix the networking service failure
* Add RDEPENDS on 'ifupdown' because:
The 'ifup' command provided by 'busybox' and 'ifupdown' behave differently
when an interface has been configured:
- The one from busybox
$ sudo ifup lo; echo $?
RTNETLINK answers: File exists
1
- The one from ifupdown
$ sudo ifup lo; echo $?
ifup: interface lo already configured
0
The exit code 1 from the busybox one would cause the networking service
failed, so add RDEPENDS on ifupdown to avoid using the one from busybox.
* Do not auto config eth0 since it may not exist.
Issue-ID: INF-192
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Change-Id: I5d9478ca163d90da3106ecf6a05ee9459df83502