staging: rtl8188eu: Fix CHECK of coding style

Fixed a CHECK of Lines should not end with a '('.

Signed-off-by: Simon Fong <simon.fodin@gmail.com>
Link: https://lore.kernel.org/r/9f1f9d7d4723aa8d9bc2d7149fd01aacc1191860.1593703689.git.simon.fodin@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>