LU-1346 libcfs: replace CFS_CAP_XXX with kernel definition

LU-1346 libcfs: replace CFS_CAP_XXX with kernel definition

Replace CFS_CAP_XXX with kernel standard CAP_XXX flags.
Keep cfs_cap_xxx(raise/lower/raised) wrappers.

Signed-off-by: Liu Xuezhao <xuezhao.liu@emc.com>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: I656c41b94e73bf8d03698a8709be999038a50b35
Reviewed-on: http://review.whamcloud.com/4781
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Tested-by: Hudson
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>