Updated preflight pool version to 39.

Replaced rambi with expresso and included winky in boards to run.

BUG=None
TEST=Ran wifi_release suite manually

Change-Id: Ic838083d90753c0bb6899fd07b1531bb8ea5832c
Reviewed-on: https://chromium-review.googlesource.com/216034
Reviewed-by: Kris Rambish <krisr@chromium.org>
Tested-by: Tien Chang <tienchang@chromium.org>
diff --git a/provingground/run_wifi_release_suite.sh b/provingground/run_wifi_release_suite.sh
index d748e44..2eaea95 100755
--- a/provingground/run_wifi_release_suite.sh
+++ b/provingground/run_wifi_release_suite.sh
@@ -14,7 +14,7 @@
 
 USAGE_STRING='Usage: ./run_wifi_release_suite.sh <branch number> <build number>'
 
-declare -i PREFLIGHT_POOL_VERSION=38
+declare -i PREFLIGHT_POOL_VERSION=39
 
 if [[ $# -eq 0  ||  -z $2 ]] ; then
   echo $USAGE_STRING
@@ -43,7 +43,8 @@
 list_7=(falco_li tricky)
 
 # intel wilkins peak 2 on kernel 3.10
-list_8=(squawks rambi clapper glimmer quawks enguarde kip squawks gnawty swanky)
+list_8=(squawks expresso clapper glimmer quawks enguarde kip squawks gnawty
+        swanky winky)
 
 # wificell_preflight boards; leaving empty for future boards
 list_9=()