Key in StrictHostKeyChecking param to SSH

Resolves openbmc/openbmc-test-automation#679

Change-Id: I16a6f779a86510dee7e9dbfcd40e1c819972649c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index b25c40b..b11022d 100755
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -429,7 +429,7 @@
     Should Be Equal  ${rc}  ${0}  msg=${output}\n
 
     ${cmd_buf}=  Catenate  ssh_pw ${OPENBMC_PASSWORD} -p 2200
-    ...  ${OPENBMC_USERNAME}@${OPENBMC_HOST}
+    ...  -o "StrictHostKeyChecking no" ${OPENBMC_USERNAME}@${OPENBMC_HOST}
 
     [Return]  ${cmd_buf}