Handle duplicate Uris in DND rules

If a user creates 2 DND rules of the same type with the same criteria,
DND would either not start properly or end properly when that criteria
started/ended.

This makes sure all rules with matching criteria have their Conditions
updated.

Test: atest
Fixes: 141343447
Change-Id: Id8c56433ec3f238d3bfc08deb70212c8a7f27843