port r17369 from 1.2: yet more suppressions

tools/valgrind/libc.suppr

@@ -35,9 +35,8 @@
    Memcheck:Leak
    match-leak-kinds: reachable
    ...
-   fun:get_elem
    fun:__aio_enqueue_request
-   fun:aio_read
+   ...
 }
 {
    <insert_a_suppression_name_here>

tools/valgrind/opencl.suppr

@@ -721,3 +721,15 @@
    fun:dlopen@@GLIBC_2.2.5
    ...
 }
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:calloc
+   fun:_dlerror_run
+   fun:dlclose
+   obj:/usr/lib/x86_64-linux-gnu/libamdocl64.so
+   fun:__run_exit_handlers
+   fun:exit
+   ...
+}