message: start_px4_sitl: fix typo firmare -> firmWare
diff: @@ -11,8 +11,8 @@ if [[ $AUTOSTART_SITL != 1 ]]; then
  exit 0
  fi
  -if [[ -n "$PX4_FIRMARE_DIR" ]]; then
  - px4_firmware_dir=$PX4_FIRMARE_DIR
  +if [[ -n "$PX4_FIRMWARE_DIR" ]]; then
  + px4_firmware_dir=$PX4_FIRMWARE_DIR
  else
  # Try to use the documented default path.
  px4_firmware_dir=$HOME/src/Firmware
  