OSHMEM: spml ikrit valgrind fix

always initialize request flags
(cherry picked from commit fbb9dc5b1e53bdbbd8db726e9b63b10aa02f4fa3)
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
Merge pull request #94 from alex-mikheev/topic/spml-ikrit-valgrind-fix

OSHMEM: spml ikrit valgrind fix
Merge remote-tracking branch 'release/v1.8' into topic/sync_with_ompi
adding https://github.com/open-mpi/ompi-release/pull/82 PR
Merge pull request #18 from miked-mellanox/topic/sync_with_ompi

sync with ompi-release/v1.8