Fix cli header name in help text (maya-->mayactl)
Fix cli header name in help text (maya-->mayactl)

Signed-off-by: prateekpandey14 <b9840ec9e5d2558873c20ce65666d5e6288e967d@gmail.com>

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