Creating internal only getActivityInfo for Cross Profile

Current getActivityInfo is exposed as public api which needs cross
profile access permissions. Now that we are performing chained intent
resolution (example, clone profile -> owner -> work profile) we need to
getActivityInfo to bypass cross profile check for intent redirection.
This would be only internal method and not exposed to system or public.

Bug: 255745774
Test: atest CtsAppCloningHostTest:com.android.cts.appcloning.IntentRedirectionTest
Test: Manually tested with clone,owner and work profile.
Change-Id: I91c685f5c500b12229dc56534a2fc558f7f2b8a1