tools/valgrind: add suppression rules for hwloc

tools/valgrind/hwloc.suppr

@@ -74,3 +74,39 @@
    obj:*
    fun:hwloc_discover
 }
+
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc
+   fun:strdup
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   fun:hwloc_discover
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc
+   fun:strdup
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   fun:hwloc_discover
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:realloc
+   obj:*
+   obj:*
+   obj:*
+   obj:*
+   fun:hwloc_discover
+}