Merge in 'release/6.0' changes

Author: dotnet-bot

src/libraries/System.IO.Ports/pkg/runtime.native.System.IO.Ports.proj

@@ -6,6 +6,8 @@
     <NoTargetsDoNotReferenceOutputAssemblies>false</NoTargetsDoNotReferenceOutputAssemblies>
     <!-- This is a meta package and doesn't contain any libs. -->
     <NoWarn>$(NoWarn);NU5128</NoWarn>
+    <!-- It doesn't make sense to run package validation on native packages -->
+    <EnablePackageValidation>false</EnablePackageValidation>
   </PropertyGroup>
 
   <ItemGroup>

src/libraries/System.IO.Ports/pkg/runtime.native.System.IO.Ports.props

@@ -13,6 +13,8 @@
     <UseRuntimePackageDisclaimer>true</UseRuntimePackageDisclaimer>
     <!-- This is a native package and doesn't contain any ref/lib assets. -->
     <NoWarn>$(NoWarn);NU5128</NoWarn>
+    <!-- It doesn't make sense to run package validation on native packages -->
+    <EnablePackageValidation>false</EnablePackageValidation>
   </PropertyGroup>
 
   <ItemGroup>