Cleanup of module building.

CMakeLists.txt

Makefile

cmake/common/px4_base.cmake

cmake/configs/config_nuttx_px4fmu-v2_simple.cmake

cmake/configs/config_posix_sitl_simple.cmake

cmake/configs/config_qurt_hil_simple.cmake

cmake/nuttx/px4_impl_nuttx.cmake

cmake/posix/px4_impl_posix.cmake

cmake/px4_git_hash.cmake

cmake/qurt/px4_impl_qurt.cmake

cmake/scripts/bin_to_object.py

cmake/scripts/convert_modules_to_cmake.py

cmake/scripts/test_compare.py

cmake/templates/build_git_version.h.in

cmake/templates/cmake_lists.jinja

cmake/toolchains/Toolchain-arm-none-eabi.cmake

cmake/toolchains/Toolchain-hexagon.cmake

cmake/toolchains/Toolchain-native.cmake

cmake/toolchains/Toolchain-posix-clang-native.cmake

nuttx-configs/sim/nsh/defconfig