Merge branch 'Aquantia-atlantic-critical-fixes-04-2018'

Igor Russkikh says:

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Aquantia atlantic critical fixes 04/2018

Two regressions on latest 4.16 driver reported by users

Some of old FW (1.5.44) had a link management logic which prevents
driver to make clean reset. Driver of 4.16 has a full hardware reset
implemented and that broke the link and traffic on such a cards.

Second is oops on shutdown callback in case interface is already
closed or was never opened.
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Signed-off-by: David S. Miller <davem@davemloft.net>