[Role Logic Move] Lift user from isPackageQualified

This change modifies the following methods:

- Role::isPackageQualified[AsUser]
- PackageUtils::isSystemPackage[AsUser]
- RequiredComponent:getQualifyingComponentForPackage[AsUser]

...by making them multi-user aware. I.e., lift any references to
Process.myUserHandle() out of them into method arguments.

Bug: 302563690
Test: atest CtsRoleTestCases
Change-Id: I585add386327bcea4976c341308af60a9ce17d3b