Update the reverse functional association

https://gerrit.openbmc-project.xyz/#/c/9180/ changed the reverse
functional association to "functional". This updates the
documentation to reflect that.

Change-Id: Idbe0142f2d6c9aafd1151a8839e07a72fd58be94
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/extended/code_update/test_field_mode.robot b/extended/code_update/test_field_mode.robot
index 91b5cd9..42bdcb3 100644
--- a/extended/code_update/test_field_mode.robot
+++ b/extended/code_update/test_field_mode.robot
@@ -30,7 +30,7 @@
     #         ],
     #         [
     #             "functional",
-    #             "software_version",
+    #             "functional",
     #             "/xyz/openbmc_project/software/fcf8e182"
     #         ]
     #     ]
diff --git a/lib/code_update_utils.robot b/lib/code_update_utils.robot
index 978ddcd..fc06b89 100644
--- a/lib/code_update_utils.robot
+++ b/lib/code_update_utils.robot
@@ -399,7 +399,7 @@
     #         ],
     #         [
     #             "functional",
-    #             "software_version",
+    #             "functional",
     #             "/xyz/openbmc_project/software/fcf8e182"
     #         ]
     #     ]