_Compilie Testing issues_

Branch: dpdk-next-net

d2f81c3eb6fc90f065e4b2d8c9223e8fa14b0d45 --> compile testing fail

Test environment and result as below:

+--------------+-------------------+------------------+--------------+
| Environment  | dpdk_compile_spdk | dpdk_compile_ovs | dpdk_compile |
+==============+===================+==================+==============+
| FreeBSD 11.2 | FAIL              |                  | FAIL         |
+--------------+-------------------+------------------+--------------+
| Ubuntu 18.04 | FAIL              | FAIL             | FAIL         |
+--------------+-------------------+------------------+--------------+
| CentOS 8     |                   | FAIL             | FAIL         |
+--------------+-------------------+------------------+--------------+

FreeBSD 11.2
	Kernel: 11.2
	GCC: 8.3

Ubuntu 18.04
	Kernel: 4.15.0-generic
	GCC: 7.4

CentOS 8
	Kernel: 4.18.0.el8_0
	GCC: 8.2

https://lab.dpdk.org/results/dashboard/tarballs/7101/

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