Rewrite ResolutionPreferenceFragmentTest to kotlin

Had trouble adding new test for b/407007697 due to some of the test
structures. When cleaning up some parts of the test, I think we might as
well rewrite this to Kotlin while the test class is small
No logic change, just a rewrite to make it easier for more cleanup in
the next CL.

Bug: 407007697
Test: atest ResolutionPreferenceFragmentTest
Flag: EXEMPT cleanup
Change-Id: I9b8a1c9c89a3bbfd1fc1e6c96b00cf908c27ac33