LU-3637 lnet: build Lustre with Intel OFED for Xeon Phi

LU-3637 lnet: build Lustre with Intel OFED for Xeon Phi

The compilation of Lustre with Intel OFED for Xeon Phi failed
because of missing include of pci-dma.h header file. In Linux
kernel includes this file included automatically from pci.h
but in Intel Xeon Phi headers it's not true. So, just add this
include explicitly.

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Change-Id: I086fa38f1aca4dd6e14b093f6f02ab4e3bcd347c
Reviewed-on: http://review.whamcloud.com/7115
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>