_Functional Testing issues_

Branch: dpdk-next-net-mlx

c8cc6bb2274a3214c48b2fad4f14710f449bd0ae --> functional testing fail

Test environment and result as below:

Ubuntu 18.04
Kernel: 4.15.0-65-generic
Compiler: gcc gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
NIC: Broadcom Inc. brcm_57414 25000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 2/3
	Failed Tests:
		- mtu_update
		- scatter


To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/12196/

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