Fix display events emitted when override info changed

After the split of display changed events into basic changes and refresh
rate changes, we have continued to emit both these events when
non-overridden display info is checked. This is incorrect as it is
possible for displays's basic information to change but refresh rate
still remains the same.

Bug: 397020451
Flag: EXEMPT trivial change
Test: Manually run abtd to validate the metrics
Change-Id: I14c031acb3fac4ac38d75c1cccfd2884bfbef005