CMake: clarify why libparameter doesn't link with libremote-processor

It is accessed through dlopen().

Signed-off-by: David Wagner <david.wagner@intel.com>
diff --git a/parameter/CMakeLists.txt b/parameter/CMakeLists.txt
index 73d6a93..0d962ee 100644
--- a/parameter/CMakeLists.txt
+++ b/parameter/CMakeLists.txt
@@ -173,6 +173,7 @@
 include_directories("${PROJECT_SOURCE_DIR}/utility")
 include_directories("${PROJECT_SOURCE_DIR}/remote-processor")
 
+# No need to link with libremote-processor: it is accessed via dlopen()
 target_link_libraries(parameter xmlserializer pfw_utility)
 
 install(TARGETS parameter LIBRARY DESTINATION lib)