Both vpp-devel and vpp-dpdk-devel have /usr/include/dpdk
in their files list. CentOS 7 won't allow them to both be
installed at the same time as a result.
Change vpp-dpdk-devel to /usr/include/dpdk/* so both can
be installed. It is useful to have both installed on a
development system.
Change-Id: I94b6cca299dfbd991638e43c41006db0d8f7ee8b
Signed-off-by: Matthew Smith <mgsmith@netgate.com>