Replace resource.txt with resource.robot

Change-Id: I4d2afd35645880e33a31644cd717bbeae55666f0
Signed-off-by: Sandhya Somashekar <sansomas@in.ibm.com>
diff --git a/tests/test_time.robot b/tests/test_time.robot
index 5ced93a..cf8b04b 100644
--- a/tests/test_time.robot
+++ b/tests/test_time.robot
@@ -5,7 +5,7 @@
 Resource               ../lib/ipmi_client.robot
 Resource               ../lib/openbmc_ffdc.robot
 Resource               ../lib/state_manager.robot
-Resource               ../lib/resource.txt
+Resource               ../lib/resource.robot
 
 Library                OperatingSystem
 Library                DateTime