_Functional Testing issues_

Branch: dpdk

ccf69617ce96e1b708c7644289ee8df4586f7556 --> functional testing fail

Test environment and result as below:

Ubuntu 20.04 ARM
Kernel: 4.15.0-132-generic
Compiler: gcc 7.5
NIC: Arm Mellanox ConnectX-5 10000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 2/3
	Failed Tests:
		- mac_filter
		- mtu_update


To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/16856/

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