LU-5275 gnilnd: Add definition for PDE_DATA

LU-5275 gnilnd: Add definition for PDE_DATA

With the move of PDE_DATA to lprocfs_status.h there
was one klnd driver, gnilnd, that needed this define.
So the simple solution is to include the needed header.

Change-Id: I0b2bbc8d2efeab8e253f11b0e58df51c0002d5ae
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/13527
Tested-by: Jenkins
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Patrick Farrell <paf@cray.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>