tests/samples: Use <rtems/test.h>

testsuites/samples/base_sp/system.h

@@ -12,6 +12,7 @@
  */
 
 #include <rtems.h>
+#include <rtems/test.h>
 
 /* functions */
 
@@ -33,6 +34,8 @@ rtems_task Application_task(
 #define CONFIGURE_MAXIMUM_TASKS            2
 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
 
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
 #include <rtems/confdefs.h>
 
 /* end of include file */