fix MCA variable scope in coll basic

Changes several variables scope from READONLY to ALL so that they can be set
via MPI_T interface

Signed-off-by: Burlen Loring <bloring@nvidia.com>

Author: Burlen Loring

ompi/mca/coll/basic/coll_basic_component.c

@@ -13,6 +13,7 @@
  * Copyright (c) 2008      Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2015      Los Alamos National Security, LLC. All rights
  *                         reserved.
+ * Copyright (c) 2024      NVIDIA CORPORATION. All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -91,16 +92,16 @@ basic_register(void)
     mca_coll_basic_priority = 10;
     (void) mca_base_component_var_register(&mca_coll_basic_component.collm_version, "priority",
                                            "Priority of the basic coll component",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE,
                                            OPAL_INFO_LVL_9,
-                                           MCA_BASE_VAR_SCOPE_READONLY,
+                                           MCA_BASE_VAR_SCOPE_ALL,
                                            &mca_coll_basic_priority);
     mca_coll_basic_crossover = 4;
     (void) mca_base_component_var_register(&mca_coll_basic_component.collm_version, "crossover",
                                            "Minimum number of processes in a communicator before using the logarithmic algorithms",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE,
                                            OPAL_INFO_LVL_9,
-                                           MCA_BASE_VAR_SCOPE_READONLY,
+                                           MCA_BASE_VAR_SCOPE_ALL,
                                            &mca_coll_basic_crossover);
 
     return OMPI_SUCCESS;