Open-coded get_netdev implementation in MANA IB

[Leon Romanovsky <leon@xxxxxxxxxx>]

Hi,

I looked again on the patch 3b73eb3a4acd ("RDMA/mana_ib: Introduce mana_ib_get_netdev helper function")
and wonder if it is correct thing to do.

All new drivers shouldn't open-code get_netdev() and use the helpers ib_device_get_netdev() and
ib_device_set_netdev() instead of storing netdev in the driver.

Can you please convert MANA IB driver to proper API usage?

Thanks