Add pike symlink to ocata

Link pike config to ocata folder to be able install Pike version
by this formula.

Related-Prod: PROD-15582
Change-Id: I2766f9bbeb0f14aa89eb08323dabe2351843d33f
diff --git a/octavia/files/pike b/octavia/files/pike
new file mode 120000
index 0000000..d5e8ce2
--- /dev/null
+++ b/octavia/files/pike
@@ -0,0 +1 @@
+ocata
\ No newline at end of file