Use SkippedException in gc/arguments/TestSmallInitialHeapWithLargePageAndNUMA.java test

all the checks of gc/arguments/TestSmallInitialHeapWithLargePageAndNUMA.java test are done iff both NUMA and HugeTLB are supported, otherwise the test just exits w/o any checks performed. using SkippedException will help us to see when this test was actually run.