LU-15519 quota: fallocate does not increase projectid usage

LU-15519 quota: fallocate does not increase projectid usage

fallocate() was not accounting for projectid quota usage.
This was happening due to two reasons. 1) the projectid
was not properly passed to md_op_data in ll_set_project()
and 2) the OBD_MD_FLPROJID flag was not set receive the
projctid.

This patch addresses the above reasons.

Test-case: sanity-quota/78a added

Fixes: 48457868a02a ("LU-3606 fallocate: Implement fallocate preallocate operation")
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Change-Id: I3ed44e7ef7ca8fe49a08133449c33b62b1eff500
Reviewed-on: https://review.whamcloud.com/46676
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Hongchao Zhang <hongchao@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>