Collect and process provisioning items to call updateImsServiceConfig

Provisioning items are notified one by one, updateImsServiceConfig is
called multiple times redundantly. Improvements have been added to
process reevaluateCapability at once as much as possible.

Bug: 302281114
Test: atest ImsPhoneCallTrackerTest
Change-Id: Ib8e35995623a5149d533d9457f7f72c2cbf7fc86