Fix import for directory.build.props

Author: MarkCiliaVincenti

framework/Directory.Build.props

@@ -1,6 +1,7 @@
 <Project>
+  <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+
   <PropertyGroup>
-    <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
     <LangVersion>preview</LangVersion>
   </PropertyGroup>