net: Ignore everything in RX if interface is not up
net: Ignore everything in RX if interface is not up

No need to receive anything if network interface is down.

Change-Id: I22d62aeaf4fbef54608818bf6c8073ec2e9a7c09
Signed-off-by: Jukka Rissanen <f9f077d1da4c7aa947f9864fa5a28c3588f6a45d@linux.intel.com>

fbsder/zephyr,fbsder/zephyr,fbsder/zephyr,fbsder/zephyr,fbsder/zephyr