Notify ClipboardService when a trusted paste action is performed

This is to suppress the clip access toast (called notification in code)
when a trusted component can assert that the user intended to provide
clip access to a given application.

Test: Manual
Bug: 363318732
Fixes: 404562929
Flag: android.permission.flags.system_selection_toolbar_enabled

Change-Id: I5d60b7b0fe3728cc5414032b4f53a16f1d26c57e