[Telephony]Fix Service State Update notification

-  On Frequency change or NR Connection status change,
   NetworkTypeController fails to update override network
   in telephony display info for system UI.
   Reason : ServiceStateTracker fails to update Service State change
   information for registrants, since haschanged value was resetting at
   Bandwidth settings change check logic.

Bug: 274810933
Test: atest FrameworkTelephonyTests, Sanity Test :b/279568131
Change-Id: I33f78eae9130467c0b406e28b83738b70af52456