ec: fix the setxattr of simple-quota limit

[amarts]

Simple-quota works on the idea that each brick knows what its capacity at the directory level are. In EC, the brick doesn't have full data but reduced by a factor of fragments. Thus, in this special case, while sending the limit itself, good to handle the fragment size part.

Updates: #3638 Change-Id: Id341de5afe59a7348c5eb15c51555243363550ef Signed-off-by: Amar Tumballi [email protected]

[amarts]

/run regression