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b8aebf4c - add _repeated_blocks for ErnieImageTransformer2DModel (#13496)

add _repeated_blocks for ErnieImageTransformer2DModel (#13496) Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com> Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com>