[release/8.0-staging] Include PDB for all TfmRuntimeSpecificPackageFile (#112140)

* Include PDB for all TfmRuntimeSpecificPackageFile

Previously this would only include the PDB for the primary output which
missed any other additions to TfmRuntimeSpecificPackageFile - such as
those from references or packages.

* Update System.Diagnostics.EventLog.csproj

---------

Co-authored-by: Eric StJohn <ericstj@microsoft.com>

Author: github-actions[bot]

eng/packaging.targets

@@ -148,7 +148,7 @@
       <TfmSpecificPackageFile Include="@(TfmRuntimeSpecificPackageFile)"
                               PackagePath="runtimes\$(_packageTargetRuntime)\$(BuildOutputTargetFolder)\$(_targetFrameworkWithoutSuffix)\" />
       <!-- Create the item and use its metadata separately to avoid MSB4120. See https://aka.ms/msbuild/metadata-self-ref for more info. -->
-      <_RuntimeSymbolPath Include="$(RuntimeSymbolPath)" />
+      <_RuntimeSymbolPath Include="@(TfmRuntimeSpecificPackageFile->'%(RootDir)%(Directory)%(FileName).pdb')" Condition="'%(TfmRuntimeSpecificPackageFile.Extension)' == '.dll'" KeepMetadata="None" />
       <TfmSpecificDebugSymbolsFile Include="@(_RuntimeSymbolPath)"
                                    TargetPath="/runtimes/$(_packageTargetRuntime)/$(BuildOutputTargetFolder)/$(_targetFrameworkWithoutSuffix)/%(_RuntimeSymbolPath.Filename)%(_RuntimeSymbolPath.Extension)"
                                    TargetFramework="$(_targetFrameworkWithoutSuffix)"

src/libraries/System.Diagnostics.EventLog/src/System.Diagnostics.EventLog.csproj

@@ -3,8 +3,8 @@
     <TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent);$(NetCoreAppPrevious)-windows;$(NetCoreAppPrevious);$(NetCoreAppMinimum)-windows;$(NetCoreAppMinimum);netstandard2.0;$(NetFrameworkMinimum)</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <IsPackable>true</IsPackable>
-    <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
-    <ServicingVersion>1</ServicingVersion>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <ServicingVersion>2</ServicingVersion>
     <PackageDescription>Provides the System.Diagnostics.EventLog class, which allows the applications to use the Windows event log service.
 
 Commonly Used Types: