Fix HearingDevicesDialogDelegateTest failed

1. Spinner.setSelection(index) in onItemSelected() callback will cause
   onItemSlected() callback get called again and result in an infinite
   loop. Remove this line to avoid this issue.
2. HapClientProfile.selectPreset() is called in onItemSelected()
   callback to sync the current selection to remote device. When
   refreshing the UI no matter on success/failure from remote, we should
   use Spinner.setSelection(index, false) instead of
   Spinner.setSelection(index) to avoid envoke onItemSelected() and
   HapClientProfile.selectPreset() again

Flag: EXEMPT bugfix
Bug: 354602601
Test: atest HearingDevicesDialogDelegateTest
Change-Id: Id81c63638f13a0723e2e4c941888c485a7e497db