Add internal implementation for notifyPackageUse

We have checks that prevent applications from modifying the usage
times of instant apps [and vice versa]. However, it's critical for
internal components such as the ActivityManager to be able to upate
this for all packages. Add an internal implementation of this
method that skips the checks.

Change-Id: Ib890296065024104cdaf7c8d64a5a7583d9062c1
Fixes: 65228752
Test: Manual. Run an application installed as an "instant app" and notice the usage time goes up