mavlink: cmake generate mavlink headers at build time

- mavlink/mavlink is now directly included as a submodule instead of the generated mavlink/c_library_v2
 - this also switches to mavlink development.xml by default

src/modules/simulator/CMakeLists.txt

@@ -55,12 +55,13 @@ px4_add_module(
 		-Wno-cast-align
 		-Wno-address-of-packed-member # TODO: fix in c_library_v2
 	INCLUDES
-		${PX4_SOURCE_DIR}/mavlink/include/mavlink
+		${CMAKE_BINARY_DIR}/mavlink
+		${CMAKE_BINARY_DIR}/mavlink/development
 	SRCS
 		simulator.cpp
 		simulator_mavlink.cpp
 	DEPENDS
-		git_mavlink_v2
+		mavlink_c_generate
 		conversion
 		geo
 		drivers_accelerometer
@@ -68,6 +69,6 @@ px4_add_module(
 		drivers_gyroscope
 		drivers_magnetometer
 	)
-target_include_directories(modules__simulator INTERFACE ${PX4_SOURCE_DIR}/mavlink/include/mavlink)
+target_include_directories(modules__simulator INTERFACE ${CMAKE_BINARY_DIR}/mavlink)
 
 add_subdirectory(battery_simulator)

src/modules/simulator/simulator.h

@@ -76,8 +76,8 @@
 
 #include <random>
 
-#include <v2.0/common/mavlink.h>
-#include <v2.0/mavlink_types.h>
+#include <mavlink.h>
+#include <mavlink_types.h>
 
 using namespace time_literals;