fix Raspberry Pi common barometer, IMU and magnetometer drivers

[christianrauch]

Solved Problem

This adds common barometer, IMU and magnetometer drivers to the default Raspberry Pi build and fixes their compile errors. Currently, it appears the "default" target uses board-specific settings. However, those should be stored in board-specific "px4board" files. Additionally, I am setting the "StrictHostKeyChecking" option in the upload script to skip an interactive dialog inside the Docker container.

Changelog Entry

For release notes:

- fix common drivers for barometer, IMU and magnetometer for POSIX
- add common drivers for barometer, IMU and magnetometer to default Raspberry Pi target
- add '-e "ssh -o StrictHostKeyChecking=no"' to simplify cross builds with Docker container

Test coverage

build & run test on Raspberry Pi