ansible: known_hosts: update

After deploying with ansible to the jenkins nodes, these entries were
added.

Change-Id: I3e3841d9f1f5581067b7dd90cdfcaf8337700e6f
diff --git a/ansible/util/known_hosts b/ansible/util/known_hosts
index 01e9baa..8c93b5d 100644
--- a/ansible/util/known_hosts
+++ b/ansible/util/known_hosts
@@ -2,3 +2,6 @@
 2a01:4f8:10b:2ad9::1:13 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEfg7NNBKjVJGoL3oUDrJCccI2D8podsSPKnRn1aTUge
 2a01:4f8:212:3762::1:3 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICl7tuOgN64+iYuYCtfCKaUbN9IWzKycpKVRgzsjVCPY
 2a01:4f8:120:8470::1:4 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIPKRz2Eg+h6RTREn52n/ip3pzUjRu9pw1XdjWUrvvi/
+10.9.25.50 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPowg8lZeIGJ6LCLA8U4eSHnnPX90FaVgInDuRi5U9Zq
+10.9.25.60 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOAK6SQXmifMamE1VHL/1GmPkk6KhplzT20jSOwb8PyZ
+10.9.25.70 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILioWTUt6CyZTceSKqy09mtlNUif+ETKTF6whnWuIROx