[OpenMP] NFC: disabled two flakey tests as the bug in libomp not fixed yet

Author: AndreyChurbanov

openmp/runtime/test/env/kmp_set_dispatch_buf.c

@@ -9,7 +9,7 @@
 // RUN: env KMP_DISP_NUM_BUFFERS=3 %libomp-run
 // RUN: env KMP_DISP_NUM_BUFFERS=4 %libomp-run
 // RUN: env KMP_DISP_NUM_BUFFERS=7 %libomp-run
-// UNSUPPORTED: clang-11, clang-12
+// UNSUPPORTED: clang-11, clang-12, clang-13
 #include <stdio.h>
 #include <omp.h>
 #include <stdlib.h>

openmp/runtime/test/worksharing/for/kmp_set_dispatch_buf.c

@@ -3,7 +3,7 @@
 // RUN: %libomp-run 1 && %libomp-run 2 && %libomp-run 5
 // RUN: %libomp-compile -DMY_SCHEDULE=guided && %libomp-run 7
 // RUN: %libomp-run 1 && %libomp-run 2 && %libomp-run 5
-// UNSUPPORTED: clang-11, clang-12
+// UNSUPPORTED: clang-11, clang-12, clang-13
 #include <stdio.h>
 #include <omp.h>
 #include <stdlib.h>