[dts][PATCH V1] tests/port_control: optimize the test script to make run stably

[Peng, Yuan]

Acked-by: Peng, Yuan <yuan.peng at intel.com>

-----Original Message-----
From: Weiyuan Li <weiyuanx.li at intel.com> 
Sent: Monday, August 1, 2022 1:28 PM
To: dts at dpdk.org
Cc: Li, WeiyuanX <weiyuanx.li at intel.com>
Subject: [dts][PATCH V1] tests/port_control: optimize the test script to make run stably

The case of VF binds PF port to kernel driver, and the next test case of PF needs to be bound to the dpdk driver, but it does not test failed.
So, add check whether the PF port is bound to the dpdk driver.

Signed-off-by: Weiyuan Li <weiyuanx.li at intel.com>