Update ena-com HAL to v1.1.4.3 and update driver accordingly

Update ena-com HAL to v1.1.4.3 and update driver accordingly

The newest ena-com HAL supports LLQv2 and introduces
API changes. In order not to break the driver compilation
it was updated/fixed in a following way:

* Change version of the driver to 0.8.0
* Provide reset cause when triggering reset of the device
* Reset device after attach fails
* In the reset task free management irq after calling ena_down. Admin
  queue can still be used before ena_down is called, or when it is
  being handled
* Do not reset device if ena_reset_task fails
* Move call of the ena_com_dev_reset to the ena_down() routine - it
  should be called only if interface was up
* Use different function for checking empty space on the sq ring
  (ena-com API change)
* Fix typo on ENA_TX_CLEANUP_THRESHOLD
* Change checking for EPERM with EOPNOTSUPP - change in the ena-com API
* Minor style fixes

Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Amazon.com, Inc.
               Semihalf
Sponsored by: Amazon.com, Inc.
Differential Revision: https://reviews.freebsd.org/D12143