Define new macro XFS_ALL_QUOTA_ACTIVE and simply some usage

Define new macro XFS_ALL_QUOTA_ACTIVE and simply some usage
of quota macros.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

diff --cc fs/xfs/xfs_qm.c
Simple merge

diff --cc fs/xfs/xfs_quota.h
Simple merge

diff --cc fs/xfs/xfs_super.c
Simple merge