LU-6245 libcfs: make libcfs_ioctl.h and lnetctl.h uapi compliant

LU-6245 libcfs: make libcfs_ioctl.h and lnetctl.h uapi compliant

For UAPI headers the policy is to only have data
structures shared between user land and kernel
space. All non data structures except a reference
to libcfs_ioctl_data_adjust() have been removed.
libcfs_ioctl_data_adjust can go away when the two
module.c files for libcfs will merger. For lnetctl.h
we remove userland only function prototypes.h

Change-Id: I4e09041a7f0b590d7eb81eda32f0bccdfb9d28ac
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/17643
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>