- Fix build error in test_uve.cc
- Remove test_sg alias from vnsw/agent/test/SConscriptw

Change-Id: I27abad5f05e3ff1c1544c44f9657eb1c468f477b
Merge "- Fix build error in test_uve.cc - Remove test_sg alias from vnsw/agent/test/SConscriptw"