Replace resource.txt with resource.robot

Change-Id: I4d2afd35645880e33a31644cd717bbeae55666f0
Signed-off-by: Sandhya Somashekar <sansomas@in.ibm.com>
diff --git a/tools/oem/ibm/factory_reset_bmc.robot b/tools/oem/ibm/factory_reset_bmc.robot
index b96ff35..1ed2b79 100644
--- a/tools/oem/ibm/factory_reset_bmc.robot
+++ b/tools/oem/ibm/factory_reset_bmc.robot
@@ -5,7 +5,7 @@
 # -v OPENBMC_SERIAL_HOST:xx.xx.xx.152 -v OPENBMC_SERIAL_PORT:2002
 # -v OPENBMC_MODEL:witherspoon factory_reset.robot
 
-Resource     ../../../lib/resource.txt
+Resource     ../../../lib/resource.robot
 Resource     ../../../lib/oem/ibm/serial_console_client.robot
 Library      ../../../lib/bmc_ssh_utils.py