[utilities]: Update sonic-utilities submodule (#1949)

Signed-off-by: Shu0T1an ChenG <shuche@microsoft.com>
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Shuotian Cheng 2018-08-20 11:19:28 -07:00 committed by GitHub
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commit d9527ec5cb
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Subproject commit 747d5c386299a8fac2acb4f4594fe2498d33df36
Subproject commit 951633b02606768b458b7dc88f6c6f8ca736db4e