staging: rtl8712: fix some confusing indenting

These set off a static checker warning about "warn: add curly braces?",
but actually the code it correct, it's just the indenting which is
wrong.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>