LU-1337 llite: kernel 3.4 converts d_alloc_root to d_make_root

LU-1337 llite: kernel 3.4 converts d_alloc_root to d_make_root

kernel 3.4 converts d_alloc_root to d_make_root.
(kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b)

Add LC_HAVE_D_MAKE_ROOT/HAVE_D_MAKE_ROOT to ckeck it.

Signed-off-by: Liu Xuezhao <xuezhao.liu@emc.com>
Change-Id: I7ff1f0eff25495b655e650997016377ca0a200aa
Reviewed-on: http://review.whamcloud.com/3580
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Peng Tao <bergwolf@gmail.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>