UCX: Propagate MPI serialized for all worker creations

Move MPI to UCX thread mode function to common source. Also use
serialized mode for all oshmem initializations.

Signed-off-by: Thomas Vegas <[email protected]>
(cherry picked from commit 44cc663)

Author: tvegas1

ompi/mca/osc/ucx/osc_ucx_component.c

@@ -415,7 +415,7 @@ static int component_select(struct ompi_win_t *win, void **base, size_t size, in
         assert(mca_osc_ucx_component.ucp_worker == NULL);
         memset(&worker_params, 0, sizeof(worker_params));
         worker_params.field_mask = UCP_WORKER_PARAM_FIELD_THREAD_MODE;
-        if (mca_osc_ucx_component.enable_mpi_threads == true) {
+        if (mca_osc_ucx_component.enable_mpi_threads) {
             worker_params.thread_mode = UCS_THREAD_MODE_MULTI;
         } else {
             worker_params.thread_mode =

opal/mca/common/ucx/common_ucx.c

@@ -28,7 +28,6 @@
 #include "mpi.h"
 
 #include <ucm/api/ucm.h>
-
 #include <fnmatch.h>
 #include <stdio.h>