Merge pull request #1959 from unoplatform/dev/djo/grid-spam

Eliminate Grid 'Star measurements failed to stabilize' log spam

src/Uno.UI/UI/Xaml/Controls/Grid/Grid.Layout.cs

@@ -813,7 +813,7 @@ namespace Windows.UI.Xaml.Controls
 					remainingHeight = initialRemainingHeight;
 				}
 
-				if (i == maxTries)
+				if (i == maxTries && maxTries > 1)
 				{
 					if (this.Log().IsEnabled(LogLevel.Warning))
 					{