LU-18720 quota: check for project quota

LU-18720 quota: check for project quota

lqi_ignore_root_proj_quota should be checked only with project quota,
otherwise it's state is undefined and can lead to undefined results.

Fixes: 2686838fef ("LU-18240 sec: enforce per-nodemap project quota for root")
Test-Parameters: testlist=sanity-quota,sanity-quota,sanity-quota
Test-Parameters: fstype=zfs testlist=sanity-quota,sanity-quota,sanity-quota
Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Change-Id: I02896639ed375ddd314fa44dc9cddb008b1dbb0b
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/58066
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Sergey Cheremencev <scherementsev@ddn.com>