Merge branch 'cxgb4-add-support-to-read-write-flash'

Vishal Kulkarni says:

====================
cxgb4: add support to read/write flash

This series of patches adds support to read/write different binary images
of serial flash present in Chelsio terminator.

V2 changes:
Patch 1: No change
Patch 2: No change
Patch 3: Fix 4 compilation warnings reported by C=1, W=1 flags
Patch 4: No change
Patch 5: No change
====================

Signed-off-by: David S. Miller <davem@davemloft.net>