Make LSS report honest password quality to DPMS

Previously password quality would be promoted to whatever admin
has requested or depending on whether it was PIN or password.

Bug: 120536847
Test: manual, steps from b/123924734
Test: atest DeviceAdminHostSideTestApi24#testRunDeviceOwnerPasswordTest
Test: atest MixedManagedProfileOwnerTest#testResetPasswordWithToken
Test: atest com.android.cts.devicepolicy.PasswordComplexityTest
Test: atest PasswordMetricsTest
Change-Id: I51ca2d327f4c6db8f74c0b0ec35e4a3a346a9b5c