LU-1347 ldlm: makes EXPORT_SYMBOL follows function body

LU-1347 ldlm: makes EXPORT_SYMBOL follows function body

Makes EXPORT_SYMBOL macros immediately follow the function body,
to follow normal Linux kernel coding style.

Signed-off-by: Liu Xuezhao <xuezhao.liu@emc.com>
Change-Id: I5644d908c652b2e34d81e923367af4b5728399e1
Reviewed-on: http://review.whamcloud.com/2837
Tested-by: Hudson
Reviewed-by: Keith Mannthey <keith.mannthey@intel.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>