infiniband: fix mlx4 kconfig dependency warning

Fix kconfig dependency warning to satisfy dependencies:

warning: (MLX4_EN && NETDEVICES && NETDEV_10000 && PCI && INET || MLX4_INFINIBAND && INFINIBAND) selects MLX4_CORE which has unmet direct dependencies (NETDEVICES && NETDEV_10000 && PCI)
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/hw/mlx4/Kconfig

 config MLX4_INFINIBAND
 	tristate "Mellanox ConnectX HCA support"
+	depends on NETDEVICES && NETDEV_10000 && PCI
 	select MLX4_CORE
 	---help---
 	  This driver provides low-level InfiniBand support for