Replace resource.txt with resource.robot

Change-Id: I4d2afd35645880e33a31644cd717bbeae55666f0
Signed-off-by: Sandhya Somashekar <sansomas@in.ibm.com>
diff --git a/tests/security/test_ssl.robot b/tests/security/test_ssl.robot
index bd13dec..0085f26 100644
--- a/tests/security/test_ssl.robot
+++ b/tests/security/test_ssl.robot
@@ -3,7 +3,7 @@
 Suite Teardown    Delete All Sessions
 
 Resource          ../../lib/rest_client.robot
-Resource          ../../lib/resource.txt
+Resource          ../../lib/resource.robot
 Resource          ../../lib/openbmc_ffdc.robot
 Test Teardown     FFDC On Test Case Fail