CMake: Fix perf.py install directory

CMakeLists.txt

@@ -889,7 +889,7 @@ if(BUILD_PERF)
 	target_link_libraries(${BINARY_NAME}-perf ${BINARY_NAME} ${PERF_LIB} ${OS_LIB})
 	set_target_properties(${BINARY_NAME}-perf PROPERTIES COMPILE_DEFINITIONS "${OS_DEFINES};${FEATURE_DEFINES};${FUNCTION_DEFINES}")
 	install(TARGETS ${BINARY_NAME}-perf DESTINATION bin COMPONENT ${BINARY_NAME}-perf)
-	install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/tools/perf.py DESTINATION "${CMAKE_INSTALL_LIBDIR}/${BINARY_NAME}" COMPONENT ${BINARY_NAME}-perf)
+	install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/tools/perf.py DESTINATION "${LIBDIR}/${BINARY_NAME}" COMPONENT ${BINARY_NAME}-perf)
 endif()
 
 if(BUILD_TEST)