accelerator null component must be static

This component is always required and should not be influenced by the
user defined mca_component_path.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

Author: bosilca

opal/mca/accelerator/null/configure.m4

@@ -0,0 +1,28 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2024      NVIDIA Corporation.
+#
+# $COPYRIGHT$
+#
+# Additional copyrights may follow
+#
+# $HEADER$
+#
+
+AC_DEFUN([MCA_opal_accelerator_null_PRIORITY], [0])
+
+#
+# Force this component to compile in static-only mode
+#
+AC_DEFUN([MCA_opal_accelerator_null_COMPILE_MODE], [
+    AC_MSG_CHECKING([for MCA component $2:$3 compile mode])
+    $4="static"
+    AC_MSG_RESULT([$$4])
+])
+
+# MCA_accelerator_null_CONFIG([action-if-can-compile],
+#                             [action-if-cant-compile])
+# ------------------------------------------------
+AC_DEFUN([MCA_opal_accelerator_null_CONFIG],[
+    AC_CONFIG_FILES([opal/mca/accelerator/null/Makefile])
+])