Download 'linux-musl-x64' shared framework assets when building 'linux-musl-x64'

Author: jbeisner

build/BundledRuntimes.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <CoreSetupRid>$(HostRid)</CoreSetupRid>
     <CoreSetupRid Condition=" '$(HostOSName)' == 'win' or '$(HostOSName)' == 'osx' ">$(HostMonikerRid)</CoreSetupRid>
-
+    
     <!-- only the runtime OSX .pkgs have a `-internal` suffix -->
     <InstallerStartSuffix Condition="'$(HostOSName)' == 'osx'">-internal</InstallerStartSuffix>
 
@@ -25,6 +25,7 @@
 
     <!-- Use the portable "linux-x64" Rid when downloading Linux shared framework compressed file. -->
     <SharedFrameworkRid>$(CoreSetupRid)</SharedFrameworkRid>
+    <SharedFrameworkRid Condition=" '$(ProductMonikerRid) == 'linux-musl-x64' ">$(ProductMonikerRid)</SharedFrameworkRid>
     <SharedFrameworkRid Condition=" '$(UsePortableLinuxSharedFramework)' == 'true' ">linux-$(Architecture)</SharedFrameworkRid>
     <CombinedFrameworkHostCompressedFileName>dotnet-runtime-$(MicrosoftNETCoreAppPackageVersion)-$(SharedFrameworkRid)$(ArchiveExtension)</CombinedFrameworkHostCompressedFileName>