Test suite robot syntax error fix

Error message:
    Keyword 'BuiltIn.Should Be Equal As Strings'
    got positional argument after named arguments.

Changes:
    - Fix the dictionary access in test code. This is due to
      robot old syntax vs newer version changes.

Tested:
   - NA

Change-Id: I5bdfcb46e70e11c5dd77a8155d21c585bbeab0d2
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/extended/code_update/host_code_update.robot b/extended/code_update/host_code_update.robot
index 418f87f..502a821 100644
--- a/extended/code_update/host_code_update.robot
+++ b/extended/code_update/host_code_update.robot
@@ -150,7 +150,7 @@
     Set Host Software Property  @{software_objects}[0]  RequestedActivation
     ...  ${REQUESTED_NONE}
     ${software_properties}=  Get Host Software Property  @{software_objects}[0]
-    Should Be Equal As Strings  &{software_properties}[RequestedActivation]
+    Should Be Equal As Strings  ${software_properties}[RequestedActivation]
     ...  ${REQUESTED_NONE}