Fix for the Infiniband plugin

[minghungchen]

ISSUE TYPE

• Bugfix pull-request

DSTAT VERSION

0.9.10

SUMMARY

Fix for https://github.com/dstat-real/dstat/issues/152 to support both CX3 and newer adapter/drivers

Before: refer to the issue
After:
-ib/mlx5_1:1---ib/mlx5_4:1-----ib/total--
 recv   send : recv   send : recv   send
    0      0 :    0      0 :    0      0