LU-3240 mdc: Check for all attributes validity in revalidate

LU-3240 mdc: Check for all attributes validity in revalidate

GETATTR needs to return attributes protected by different bits, so
we need to ensure all we have locks with all of those bits, not
just UPDATE bit.

Xyratex-bug-id: MRP-1052
Signed-off-by: Alexey Lyashkov <alexey_lyashkov@xyratex.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Change-Id: I0e27a33341c424a8666bdbf3cdb83b1b4fe0058f
Reviewed-on: http://review.whamcloud.com/6460
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>