mavlink: use "normal" mode for HIL operation, only add HIL_CONTROLS stream when HIL enabled
rc.usb: increase data rate to 10000bytes/s for USB
Merge branch 'mavlink2_hil' of github.com:PX4/Firmware into paul_estimator_mavlink2
Remove HIL flag on startup
Merge branch 'mavlink2_hil' into paul_estimator_mavlink2