Name changes for FFDC Test Cases: "FFDC On Test Case Fail" and "FFDC"

Changed FFDC Test Cases Names in lib/openbmc_ffdc.robot:
Changed the name of "Log FFDC" to "FFDC On Test Case Fail"
Changed the name of "Log FFDC If Test Case Failed" to  "FFDC"
The names were reversed..
"Log FFDC" had a check to see if Test Case failed.
"Log FFDC If Test Case Failed" had the actual FFDC gathering.

Change-Id: I50a0cae783180c4bdbe82c94f2cd57f803a05998
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/tests/test_led.robot b/tests/test_led.robot
index 86798db..e084f09 100644
--- a/tests/test_led.robot
+++ b/tests/test_led.robot
@@ -6,7 +6,7 @@
 Resource          ../lib/rest_client.robot
 Resource          ../lib/resource.txt
 Resource          ../lib/openbmc_ffdc.robot
-Test Teardown     Log FFDC
+Test Teardown     FFDC On Test Case Fail
 
 *** Variables ***