When setting up DPDK - get `RTE_SDK` from command-line or from an env variable (#970)
When setting up DPDK - get `RTE_SDK` from command-line or from an env variable (#970)


seladb/PcapPlusPlus,seladb/PcapPlusPlus,seladb/PcapPlusPlus,seladb/PcapPlusPlus