RDMA/mana_ib: set node_guid

Use the mac address for the node_guid of the IB device.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1717070117-1234-2-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>