LU-4423 socklnd: use kernel socket sockopt apis

LU-4423 socklnd: use kernel socket sockopt apis

Change old way of ops->setsockopt or ops->getsockopt in kernel
to kernel_setsockopt or kernel_getsockopt.

Imported from mainline kernel,
commit 80db2734acbc78db12798cfb611d6acc7fe389e6

Change-Id: I996c4b8cd24bd506ffcc87e4ff5ae731c59a9109
Signed-off-by: Fredrick John Berchmans <fredrickprashanth@gmail.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Reviewed-on: http://review.whamcloud.com/17786
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>