[ewg] [GIT PULL docs] cxgb4 OFED-3.18 release notes update

[Steve Wise]

Vlad, please pull this commit from: 

git://git.openfabrics.org/~swise/docs ofed_3_18

Thanks,

Steve.
-------
commit 3f28519468ab4a8d52649f63a221e0dbfb4213e6
Author: Steve Wise <swise at opengridcomputing.com>
Date:   Mon Jun 15 10:54:27 2015 -0500

    Update cxgb4 release notes for OFED-3.18

    Signed-off-by: Steve Wise <swise at opengridcomputing.com>