Runtimes: adjust path for referencing SwiftCoreTargets.cmake

This is loaded by the CMake package configuration so that you can add
cross-package dependencies. Adjust the path so that the lookup succeeds
on all targets.

Author: compnerd

Runtimes/Core/cmake/interface/SwiftCoreConfig.cmake.in

@@ -1,5 +1,5 @@
 @PACKAGE_INIT@
-include("${CMAKE_CURRENT_LIST_DIR}/SwiftCoreTargets.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/SwiftCore/SwiftCoreTargets.cmake")
 
 set(SwiftCore_ENABLE_LIBRARY_EVOLUTION @SwiftCore_ENABLE_LIBRARY_EVOLUTION@)