msm: ipa: eth: Explicitly fetch initial link status

Fetch link status of the ethernet device once after registering with
netdevice notifier since the register_netdevice_notifier() API replays
only NETDEV_REGISTER and NETDEV_UP events.

Change-Id: I8c2f8127cc5f6599da1683b2a2a127a8241820cb
Signed-off-by: Jinesh K. Jayakumar <jineshk@codeaurora.org>