Modify hard-code when set a network config

Modify hard-code to global variable when set a network configuration.

Signed-off-by: Tony Lee <tony.lee@quantatw.com>
Change-Id: Ib7957b1156836b0e29585982d06f5b783bee4083
diff --git a/lib/resource.robot b/lib/resource.robot
index 76d1e7c..1018e60 100755
--- a/lib/resource.robot
+++ b/lib/resource.robot
@@ -90,6 +90,10 @@
 ${FIN_PACKETS}             FIN
 ${SYN_ACK_RESET}           SAR
 ${ALL_FLAGS}               ALL
+# Used to set BMC static IPv4 configuration.
+${STATIC_IP}            10.10.10.10
+${NETMASK}              255.255.255.0
+${GATEWAY}              10.10.10.10
 
 # BMC debug tarball parameter
 ${DEBUG_TARBALL_PATH}  ${EMPTY}