qlcnic: Fix mailbox processing during diagnostic test
qlcnic: Fix mailbox processing during diagnostic test

o Do not enable mailbox polling in case of legacy interrupt.
  Process mailbox AEN/response from the interrupt.

Signed-off-by: Manish Chopra <db299e8ee09bc137fc5ea17d686d0d8b9e8284b6@qlogic.com>
Signed-off-by: Himanshu Madhani <a1599b7f51f3890722b2125e7c07879c181c9399@qlogic.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs