ibal/cm: allow RDMA writes for QP attributes by default

ibal/cm: allow RDMA writes for QP attributes by default

Enable remote RDMA writes as the default QP attributes for INIT
transitions.  Previously, RDMA writes were only enabled if the CM
messages carried a responder resources > 0.  However, responder
resources indicates whether RDMA reads/atomics should be enabled,
not RDMA writes.

Without this patch, users of winverbs that connect in-band that
want to perform RDMA writes without performing RDMA reads will
see QP errors when performing writes.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1@2335 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86