ssa.c: Improve error log message for riomap failure in ssa_upstream_svc_client

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: In ssa_upstream_svc_client, add log message when rsock connection completes

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
[ssa.c common.h]: Change listening rsocks to SSA_CONN_TYPE_LISTEN type

from SSA_CONN_TYPE_UPSTREAM type

They're really downstream and not upstream rsocks.

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: riounmap epoch buffer on ACM/consumer upstream connection before rclose

Not doing this revealed rclose segmentation fault where there
appears to be ordering issue in cleanup there. Issue found by
Sasha and patch has been proposed but not yet incorporated into
librdmacm.

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: In ssa_upstream_initiate_conn, set connection state back to idle on error

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa.c: Remove extra space from downstream thread name in ssa_start_svc

Signed-off-by: Hal Rosenstock <hal@mellanox.com>