OSHMEM: spml yoda: use flags to check if btl is RDMA capable
(cherry picked from commit 3443c1d5e5c388623d9deac59fce3656d4e618d2)
Merge pull request #95 from alex-mikheev/topic/yoda_rdma_flags-v1.8

OSHMEM: spml yoda: use flags to check if btl is RDMA capable