PNOR - robot code fix

Fixing a code error associated with the merge of BMC Reboot.

Change-Id: I8807cf1d11a3e38c021fc7bf2e7057511644fd63
Signed-off-by: Leah McNutt <lmcnutt@us.ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index 33f72b3..5590e9b 100644
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -179,7 +179,7 @@
 Is PNOR Flash Done
     [Documentation]  Get BIOS 'Flash Done' status.  This indicates that the
     ...              PNOR flashing has completed.
-    {status}=    Get Flash BIOS Status
+    ${status}=    Get Flash BIOS Status
     should be equal as strings     ${status}     Flash Done
 
 Is System State Host Booted