fix UTC/LOCAL mismatch for dynamically created guests

Bug: 1174279
Change-Id: I9bb302dbc3d86cf1f80eb2542376686cf25c391b
release notes: properly credit Martin Kyral for bz902299 patch

Change-Id: Iafdd32ccfca561d086fc165aa16f507a251b2b7b
Do not check for harness repo when the harness is going to be run in a
container

Bug: 1157348
Merge branch 'release-19' into develop