Disable transparent hugepage and make siorv vf num configurable

Change-Id: I5bfde10a3c44f7a8aff4d6507c71a4a113da5301
diff --git a/aether-playbook/roles/sriov-dpdk/defaults/main.yml b/aether-playbook/roles/sriov-dpdk/defaults/main.yml
index c40b02c..a395ee6 100644
--- a/aether-playbook/roles/sriov-dpdk/defaults/main.yml
+++ b/aether-playbook/roles/sriov-dpdk/defaults/main.yml
@@ -15,3 +15,4 @@
 ---
 # Provide SRIOV PF name for UPF to run the playbook
 #upf_sriov_pf:
+upf_sriov_num_vf: 8