[ewg] [PULL][OFED 3.18] 7.1 compat patches for OFED BZ 2531

[Marciniszyn, Mike]

Please pull from these fixes from ~mmarciniszyn/scm/new_ofed/compat from the for-ofed-3.18 branch:

commit 52df7d8c70400e3eefb946f99a4886719e15552e
Author: Mike Marciniszyn <mike.marciniszyn at intel.com>
Date:   Wed Apr 15 08:54:34 2015 -0400

    compat: detect cpumask_set_cpu_local_first

    RHEL 7.1 exports cpumask_set_cpu_local_first.  compat's
    autoconf needs to detect and avoid the duplicate
    symbol.

    This addresses OFED BZ 2531.

    Signed-off-by: Mike Marciniszyn <mike.marciniszyn at intel.com>