[cfid-297] invert the client "override" field in the uaa.yml so that the default is override

[Fixes #39174371] uaa.yml setting (if needed to invert again) is
oauth.client.override

Change-Id: Id480e208db595373d93c5c02ae2edad185e60430
Merge "[cfid-297] invert the client "override" field in the uaa.yml so that the default is override" into develop