LU-5334 lnet: fix build with OFED-3.5-2-MIC-beta1

LU-5334 lnet: fix build with OFED-3.5-2-MIC-beta1

The stuff for RHEL6.4 should be guarded by CONFIG_COMPAT_RHEL_6_4
also in RHEL6.5. So, we need both _COMPAT_ defines in RHEL6.5.

Lustre-Review: http://review.whamcloud.com/11104
Lustre-Commit: fa4a67d5b4871e20acd07076e7fa15613695cae5

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Change-Id: I322dd2ef167c7b3c272b766ee2cd3f0d464e0a13
Reviewed-on: http://review.whamcloud.com/11153
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>