cmake remove circular linking and reorganize

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

src/modules/dataman/CMakeLists.txt

@@ -38,7 +38,4 @@ px4_add_module(
 		-Wno-sign-compare # TODO: fix all sign-compare
 	SRCS
 		dataman.cpp
-	DEPENDS
-		platforms__common
 	)
-# vim: set noet ft=cmake fenc=utf-8 ff=unix :

src/modules/dataman/dataman.cpp

@@ -60,7 +60,7 @@
 #include <drivers/drv_hrt.h>
 
 #include "dataman.h"
-#include <systemlib/param/param.h>
+#include <parameters/param.h>
 
 #if defined(FLASH_BASED_DATAMAN)
 #include <nuttx/clock.h>