LU-4379 procfs: dont always check max_pages_per_rpc alignement

LU-4379 procfs: dont always check max_pages_per_rpc alignement

If connection is not established yet, cli->cl_chunkbits is
uninitilized so we cannot use it to check max_pages_per_rpc
alignment.

Signed-off-by: Sebastien Buisson <sebastien.buisson@bull.net>
Change-Id: I4c782e2eeb5a2757d79194ee6ab6bff831a283fc
Reviewed-on: http://review.whamcloud.com/8558
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Emoly Liu <emoly.liu@intel.com>