[wrt] Update script to support multiple
[wrt]update packertool to supprt env devices

[Detailed commit message (if have)]
Impacted TCs num(approved): New 0, update 2, deleted 0
Unit test platform: [tizen]
Unit test result summary: Pass 2, Fail 0, Blocked 0
[wrt] update check db to check pkginfo for wrt-manifest-tizen-tests

[Detailed commit message (if have)]
Impacted TCs num(approved): New 0, update 272, deleted 0
Unit test platform: [tizen]
Unit test result summary: Pass 272, Fail 0, Blocked 0
Merge pull request #790 from kangxu/kangxu/wrt/shellauto/updateCases

[wrt] Update script to support multiple
Merge pull request #787 from linshen/wrt/change-host-mutil

[wrt]update packertool to supprt env devices
Merge pull request #791 from linshen/wrt/shenlin/update-manifest-0901

[wrt] update check db to check pkginfo for wrt-manifest-tizen-tests