OSHMEM: ikrit optimization

no need pre-register heap if MXM/ud is used
fixed by Alex, reviewed by Miked

cmr=v1.7.5:reviewer=ompi-rm1.7

This commit was SVN r30809.

oshmem/mca/spml/ikrit/spml_ikrit_component.c

@@ -80,7 +80,7 @@ static int check_mxm_tls(char *var)
         }
         return OSHMEM_ERROR;
     }
-    if (NULL == strstr(str, "rc")) {
+    if (NULL == strstr(str, "rc") && NULL == strstr(str, "dc")) {
         mca_spml_ikrit.ud_only = 1;
     } else {
         mca_spml_ikrit.ud_only = 0;