OSC: set UCX module used by default

- OSC/UCX module set priority to 200 to be used by default

Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>

ompi/mca/osc/ucx/osc_ucx_component.c

@@ -106,7 +106,7 @@ static int component_open(void) {
 
 static int component_register(void) {
     char *description_str;
-    mca_osc_ucx_component.priority = 0;
+    mca_osc_ucx_component.priority = 200;
     opal_asprintf(&description_str, "Priority of the osc/ucx component (default: %d)",
              mca_osc_ucx_component.priority);
     (void) mca_base_component_var_register(&mca_osc_ucx_component.super.osc_version, "priority", description_str,