Make LocationManagerService aware of user profiles

LocationManagerService normally doesn't provide location to background users.
With managed profiles, there are more than one foreground users and they both
need to get location when in the foreground. So LMS will now compare the caller
against all foreground users and provide location if valid.

Bug: 14671472
Change-Id: If3baabfc5a3ab3f2f081d7fc28f35d840d5f1489