Add new app ops method to reset all op modes.

Change-Id: I5ee6764de8dc31d812e5a788914ab0099bbef4c0
Fix issue #10226007: Reset apps restores most of the changed settings...

...to original but not all modified ones

Very stupid mistakes in messing up the iteration when pruning op
entries.

Change-Id: Ie536b9095f797fcd2b86c9a386a72746796430d1