Add missing velocity accuracy reporting
Add missing dead reckoning reporting

   Added board_on_reset, to force timer GPIO to output low on reset
   This will stop the motors.

  This optionally provided function called on entry to
  board_system_reset. It should perform any house keeping
  prior to retunring to do the rest.

  When the CCER is cleared the IO pin tends to float. The FMUV4
  HW has no TXS0108 and if cut off while high will decay.

  By adding the pull down the pins will seek the low state faster.
  13.8 us from off to decabe below threshold.

      PX4_SPI_BUS_BARO == PX4_SPI_BUS_RAMTRON

  The ramtron driver already calls SPI_LOCK when accessing the
  FRAM.

  Removed the interrupt lockout and anabled the SPI_LOCK
  in the ms5611 driver on any HW where the
  PX4_SPI_BUS_BARO == PX4_SPI_BUS_RAMTRON

This allows to at least have a look at the attitude and check that the board is functional on a basic level.

This is necessary to make the space for UAVCAN in memory and doing it this way avoids negatively impacting users who do not use UAVCAN.

  Recover 16 bytes. Size of debug max message is 40 so limit
  the usart tx buffer to same size.

   This removes the unused input capture capabilities from the px4io
   and saves 128 bytes of ram.

This avoids burning significant memory in a configuration that is not actually using parallel tasks

The app reached the check limit and needed a bit more headroom.