Set legitimate SSH_PORT and HTTPS_PORT defaults

Previously, these defaulted to ${EMPTY}.  22 and 443 (respectively) are
much more appropriate.

Change-Id: I4f14d7fe6a26e7ce87c31a6159d26d19bc93e820
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/lib/resource.robot b/lib/resource.robot
index 58b5b9c..0fb99bc 100755
--- a/lib/resource.robot
+++ b/lib/resource.robot
@@ -35,8 +35,8 @@
 ${PDU_SLOT_NO}      ${EMPTY}
 
 # User define input SSH and HTTPS related parameters
-${SSH_PORT}         ${EMPTY}
-${HTTPS_PORT}       ${EMPTY}
+${SSH_PORT}         22
+${HTTPS_PORT}       443
 ${OPENBMC_SERIAL_HOST}      ${EMPTY}
 ${OPENBMC_SERIAL_PORT}      ${EMPTY}