cppcheck: (error) Address of local auto-variable assigned

Suppress autoVariables warnings in the lua interpreter. The usage
here while unconventional in intentional and the same as upstream.

[module/lua/ldebug.c:327]: (error) Address of local auto-variable

assigned to a function parameter.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9732