cmake remove circular linking and reorganize

- px4_add_module now requires MAIN
 - px4_add_library doesn't automatically link

src/modules/camera_feedback/CMakeLists.txt

@@ -37,6 +37,5 @@ px4_add_module(
 	SRCS
 		camera_feedback.cpp
 	DEPENDS
-		platforms__common
 	)
-# vim: set noet ft=cmake fenc=utf-8 ff=unix :
+

src/modules/camera_feedback/camera_feedback.hpp

@@ -47,7 +47,7 @@
 #include <mathlib/mathlib.h>
 #include <systemlib/systemlib.h>
 #include <systemlib/err.h>
-#include <systemlib/param/param.h>
+#include <parameters/param.h>
 
 #include <px4_config.h>
 #include <px4_defines.h>