LU-6142 quota: Fix style issues for qsd_lock.c

LU-6142 quota: Fix style issues for qsd_lock.c

This patch fixes issues reported by checkpatch for file
lustre/quota/qsd_lock.c

Change-Id: If6bd59204b05741878436d46de06aec0728d91f2
Test-Parameters: trivial
Signed-off-by: Arshad Hussain <arshad.super@gmail.com>
Reviewed-on: https://review.whamcloud.com/33564
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Ben Evans <bevans@cray.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>