hotfix cmake copypaste bug

CMakeLists.txt

@@ -160,7 +160,7 @@ INSTALL(TARGETS ${PROJECT_NAME}
       ARCHIVE DESTINATION lib/iri-algorithms)
 INSTALL(FILES ${HEADERS} DESTINATION include/iri-algorithms/gnss_utils)
 INSTALL(FILES Findgnss_utils.cmake DESTINATION ${CMAKE_ROOT}/Modules/)
-INSTALL(FILES "${WOLF_CONFIG_DIR}/config.h"
+INSTALL(FILES "${GNSS_UTILS_CONFIG_DIR}/config.h"
   DESTINATION include/iri-algorithms/gnss_utils/internal)
 
 FIND_PACKAGE(Doxygen)