Made changes as requested by the dev team.

src/drivers/distance_sensor/pga460/CMakeLists.txt

 ############################################################################
 #
-#   Copyright (c) 2016 PX4 Development Team. All rights reserved.
+#   Copyright (c) 2018 PX4 Development Team. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -33,11 +33,6 @@
 px4_add_module(
 	MODULE drivers__pga460
 	MAIN pga460
-	COMPILE_FLAGS
-		-Os
 	SRCS
 		pga460.cpp
-	DEPENDS
-		platforms__common
 	)
-# vim: set noet ft=cmake fenc=utf-8 ff=unix :

src/drivers/distance_sensor/pga460/parameters.c

 /****************************************************************************
  *
- *   Copyright (c) 2017 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2018 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions

src/drivers/distance_sensor/pga460/pga460.cpp

 /****************************************************************************
  *
- *   Copyright (c) 2012-2016 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2012-2018 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -848,4 +848,4 @@ int PGA460::write_register(const uint8_t reg, const uint8_t val)
 int pga460_main(int argc, char *argv[])
 {
 	return PGA460::main(argc, argv);
-}
\ No newline at end of file
+}

src/drivers/distance_sensor/pga460/pga460.h

 /****************************************************************************
  *
- *   Copyright (c) 2012-2016 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2012-2018 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions