Add workarounds to cookied-mcp-pike-dpdk

- update alternatives to use dpdk-enabled ovs : PROD-18833
- pre-install linux-headers : PROD-18834

Change-Id: I73fc7ae4d194331b97cc585ebbb2810cd00e3fce
diff --git a/tcp_tests/templates/cookied-mcp-pike-dpdk/_context-environment.yaml b/tcp_tests/templates/cookied-mcp-pike-dpdk/_context-environment.yaml
index 913636b..5a68626 100644
--- a/tcp_tests/templates/cookied-mcp-pike-dpdk/_context-environment.yaml
+++ b/tcp_tests/templates/cookied-mcp-pike-dpdk/_context-environment.yaml
@@ -134,12 +134,12 @@
           role: single_dhcp
         ens4:
           role: single_ctl
-        ens5:
+        dpdkport0:
           role: bond2_dpdk_prv
-          dpdk_pci: "00:05.0"
-        ens6:
+          dpdk_pci: "0000:00:05.0"
+        dpdkport1:
           role: bond2_dpdk_prv
-          dpdk_pci: "00:06.0"
+          dpdk_pci: "0000:00:06.0"
         ens7:
           role: bond1_ab_ovs_floating