LU-1346 gnilnd: remove libcfs abstractions

LU-1346 gnilnd: remove libcfs abstractions

With the move of libcfs to using linux as the default api
this has impacted many of the lnet drivers. This patch
removes the libcfs wrappers and uses the linux API's
directly in the LND driver

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: Id502abb578808063b04e094bff026c92a5d12a3b
Reviewed-on: http://review.whamcloud.com/7454
Reviewed-by: James Shimek <jshimek@cray.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Chuck Fossen <chuckf@cray.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>