Fixes mayactl stats read and write iops output
Fixes mayactl stats read and write iops output

Fixes read and write iops output in mayactl stats,
which was getting updated only if the json flag is set.

Signed-off-by: Sumit Lalwani <e7e113d20ab967b7aa444248adfccf5bbf8e05ba@gmail.com>

openebs/maya,prateekpandey14/maya,openebs/maya,openebs/maya,prateekpandey14/maya,AmitKumarDas/maya,AmitKumarDas/maya