Merge branch 'bnxt_en-improve-firmware-flashing'

Michael Chan says:

====================
bnxt_en: Improve firmware flashing.

This patchset improves firmware flashing in 2 ways:

- If firmware returns NO_SPACE error during flashing, the driver will
create the UPDATE directory with more staging area and retry.
- Instead of allocating a big DMA buffer for the entire contents of
the firmware package size, fallback to a smaller buffer to DMA the
contents in multiple DMA operations.
====================

Link: https://lore.kernel.org/r/1607860306-17244-1-git-send-email-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>