This PS fixes this_chart_should_wait value do not be set True when
user change timeout value.
In SKT CI pipeline, all charts are deployed parallely
(NOT sequentially) so needs more time to deploy than default 900.
But when use --timeout param to change timeout, charts waits
sequentially so can not deploy parallely.
Change-Id: Ibf67c0f98bf2a05b0369ebca68780efb94c4d709