LU-1684 ldlm: move ldlm flags not sent through wire to upper 32bits

LU-1684 ldlm: move ldlm flags not sent through wire to upper 32bits

there is no empty bit for a LDLM_FL_* flag in lower 32bits, i.e. which needs
to be sent through wire. move locally used flags to upper 32bits to free some
bits.

Change-Id: Iddaff0a75b19d7311800d2ac6c3fef1012b9ffd2
Reviewed-by: Alexander Zarochentsev <Alexander_Zarochentsev@xyratex.com>
Reviewed-by: Andrew Perepechko <Andrew_Perepechko@xyratex.com>
Xyratex-Bug-ID: MRP-541
Signed-off-by: Vitaly Fertman <vitaly_fertman@xyratex.com>
Reviewed-on: http://review.whamcloud.com/3494
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Keith Mannthey <keith.mannthey@intel.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>