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_inventory.robot b/tests/test_inventory.robot
index 380a11f..1d3667c 100644
--- a/tests/test_inventory.robot
+++ b/tests/test_inventory.robot
@@ -8,7 +8,7 @@
 Library           ../lib/utilities.py
 Library           String
 Library           Collections
-Test Teardown     Log FFDC
+Test Teardown     FFDC On Test Case Fail
 
 Variables         ../data/variables.py