Fix dependency on linked_status variable for update script

[silavjy]

When executing the EC-Update-lz.py script, the following error was thrown

Traceback (most recent call last):
File "./EC-Update-LZ.py", line 1462, in
main(sys.argv[1:])
File "./EC-Update-LZ.py", line 687, in main
if seclog_status != Execution.FAIL and linked_status != Execution.FAIL:
UnboundLocalError: local variable 'linked_status' referenced before assignment

Issue may be fixed by moving line 479 outside the if statement

From this:

To this: