Temporary change to get around invalidate problem until complete changes coded and tested.
Replace DupReq_Expiration parameter

Looks like DupReq_Expiration was accidentally removed when
adding DRC config params.  This patch puts the DupReq_Expiration
back

Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com>
GRANTED_RES does not have file handle, so no check for export or credential.
Using handle_size bytes gpfs_fsal_handle in GPFSFSAL_handlecmp and FSAL_Handle_to_RBTIndex/FSAL_Handle_to_HashIndex