changes on drivers according to comments from DavidS

ROMFS/px4fmu_common/init.d/rc.sensors

cmake/configs/nuttx_px4fmu-v4_default.cmake

src/drivers/bmm150/bmm150.cpp

src/drivers/bmm150/bmm150.hpp

src/drivers/bmp280/CMakeLists.txt

src/drivers/bmp280/bmp280.cpp

src/drivers/bmp280/bmp280.h

src/drivers/bmp280/bmp280_i2c.cpp

src/drivers/bmp280/bmp280_spi.cpp

src/drivers/bmp285/CMakeLists.txt

src/drivers/bmp285/bmp285.cpp

src/drivers/bmp285/bmp285.hpp

src/drivers/bmp285/bmp285_main.cpp

src/drivers/boards/px4fmu-v4/board_config.h