fix tpch1 fs creation and adjust OpenTablet() method
fix tpch1 fs creation and adjust OpenTablet() method

Change-Id: Ie00810725663a842103e53945b0de49feb4cf3b2
Reviewed-on: http://gerrit.ent.cloudera.com:8080/113
Tested-by: jenkins <c14f3aae4f03a600341a3b92ec1ffaac2338cde0@cloudera.com>
Reviewed-by: Jean-Daniel Cryans <4bf4c125525b8623ac45dfd7774cbf531df19085@cloudera.com>
Reviewed-by: Todd Lipcon <2c763d726a8c2f6afda9be7e0e56a2caa6bb5e6b@cloudera.com>

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