staging: rtl8188eu: core: Fix WARNING of Block comments

Fixed a WARNING of Block comments use * on subsequent lines.

Signed-off-by: Simon Fong <simon.fodin@gmail.com>
Link: https://lore.kernel.org/r/20200630022228.GA580@simon-pc


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