[PackageDescription] Add missing relative SDK rpath to libPackageDescription.so shared libraries (#2661)
[PackageDescription] Add missing relative SDK rpath to libPackageDescription.so shared libraries (#2661)


apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager