we're out of flash again :/

* NuttX cmake

* px4_macros:Pass the stringified predicate as second arg to static assert

   CC_ASSERT mapes to the c++ static_assert or provides the same
   funtionality for c via the other macros. The c++ static assert
   takes 2 argumants the prdicate and a message. This fixes the
   lacking second argument.

* Updated nuttx and apps submodule to upstream nuttx 7.21+==master

   This is the latest uptake of upstream nuttx and apps.

* ROMFS generate with xxd instead of objcopy

* delete nuttx-patches

* NuttX update submodules to latest px4_nuttx-master

* fix nuttx apps and board dependency

* docker_run update to latest container 2017-08-29

* cmake ROMFS portable sed usage

* NuttX update submodules to latest px4_nuttx-master

   Airspeed changes
   add FastRTPS

   Add FastRTPS

   The new upstream nuttx defconfig format is compressed. This
   will not work well for board configs that are out of the
   upstream NuttX tree.

   The reconstitution step will not replace all the non default
   settings. I.E. CONFIG_ARCH_BOARD_PX4xxxx and will remove
   setting that are not defined from the config/KConfig. Like
   CONFIG_ARCH_BOARD_PX4xxxx=y.

   Also the configure script will fail if run without
   and intervening make distclean

   The only 2 steps from configure that re needed are
   Copying the defconfig to .config and Make.defs

   Reordering and renaming to match master for v3 config

   Superceeded by nxphlite-v3 before released

  Support the PX4 contrib to upstream Nuttx for SIM. MCG and PMC
  clocking. Now sets the USB clock correctly.

  Refit in FLASH

Conflicts:
	cmake/configs/nuttx_nxphlite-v1_default.cmake

We are running out of flash space in AeroFC so a cleanup is necessary.

Tools not used in Aero RTF, INAV, fixed wing control, vtol control and
unused libs was removed.

before
$ size build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx
   text    data     bss     dec     hex filename
 956880    3524   14608  975012   ee0a4 firmware_nuttx

after
$ size build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx
   text    data     bss     dec     hex filename
 832200    3508   14616  850324   cf994 build_aerofc-v1_default/src/firmware/nuttx/firmware_nuttx