_Functional Testing issues_

Branch: dpdk-next-net

4e43e585794e446dc405f7791e3534ea3bff31ff --> functional testing fail

Test environment and result as below:

Arm Ampere Altra - Ubuntu 20.04.4
Kernel: 5.4.0-137-generic aarch64
Compiler: gcc 9.4
NIC: Intel Corporation Ethernet Converged Network Adapter XL710-QDA2 40000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 1/2
	Failed Tests:
		- unit_tests_mbuf


Ubuntu 20.04
Kernel: 4.15.0-generic
Compiler: gcc 7.4
NIC: Intel Corporation Ethernet Converged Network Adapter XL710-QDA2 40000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/2


To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/23255/

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