Disable System.Collections.Tests.ComparersGenericTests.EqualityCompar…

…er_SerializationRoundtrip test for uap as well (dotnet#21021)

src/System.Collections/tests/Generic/Comparers/EqualityComparer.Generic.Serialization.Tests.cs

@@ -13,7 +13,7 @@ namespace System.Collections.Generic.Tests
     public abstract partial class ComparersGenericTests<T>
     {
         [Fact]
-        [ActiveIssue(20888, TargetFrameworkMonikers.UapAot)]
+        [ActiveIssue(20888, TargetFrameworkMonikers.Uap)]
         public void EqualityComparer_SerializationRoundtrip()
         {
             var bf = new BinaryFormatter();