Refactored HsumBootUserInitializerTests to use JUnit parameters

Bug: 409650316
Test: atest FrameworksMockingServicesTests --test-filter='.*HsumBootUserInitializer.*'
Flag: android.multiuser.create_initial_user

Change-Id: I384fdf0e80802dc9aff598697b0d9ba17140ea08
1 file changed