cma, scm: new provider entries for Mellanox RDMA over Ethernet device for uDAPL v1.2

cma, scm: new provider entries for Mellanox RDMA over Ethernet device for uDAPL v1.2

Add options for netdev eth2 and eth3 for cma and for device mlx4_0 port 1 and 2 for scm

OpenIB-cma-roe-eth2 u1.2 nonthreadsafe default libdaplcma.so.1 dapl.1.2 "eth2 0" ""
OpenIB-cma-roe-eth3 u1.2 nonthreadsafe default libdaplcma.so.1 dapl.1.2 "eth3 0" ""
OpenIB-scm-roe-mlx4_0-1 u1.2 nonthreadsafe default libdaplscm.so.1 dapl.1.2 "mlx4_0 1" ""
OpenIB-scm-roe-mlx4_0-2 u1.2 nonthreadsafe default libdaplscm.so.1 dapl.1.2 "mlx4_0 2" ""

Signed-off-by: Arlin Davis <arlin.r.davis@intel.com>