update valgrind suppressions for newer GCC compilers

tools/valgrind/OpenMP.supp

@@ -49,26 +49,37 @@
    Memcheck:Leak
    match-leak-kinds: reachable
    fun:malloc
+   fun:strdup
    ...
-   fun:GOMP_parallel
+   obj:/usr/lib64/libomp.so
+   fun:omp_set_num_threads
    ...
+   fun:_ZN9LAMMPS_NS6LAMMPSC1EiPPci
 }
 {
    OpenMP_init_part5
-   Memcheck:Leak
-   match-leak-kinds: reachable
-   fun:malloc
+   Memcheck:Param
+   sched_setaffinity(mask)
+   fun:syscall
+   obj:/usr/lib64/libomp.so
    ...
-   obj:/usr/lib*/libgomp.so.1*
+   obj:/usr/lib64/libomp.so
    fun:omp_set_num_threads
    ...
+   fun:main
 }
 {
    OpenMP_init_part6
    Memcheck:Leak
-   match-leak-kinds: possible
-   fun:calloc
-   ...
-   fun:GOMP_parallel
+   match-leak-kinds: reachable
+   fun:malloc
    ...
+   fun:call_init
+   fun:call_init
+   fun:_dl_init
+   obj:/usr/lib*/ld*.so
+   obj:*
+   obj:*
+   obj:*
+   obj:*
 }