staging: rtl8192u: Fixed warnings of coding style

Fixed coding style issues with comments.

Signed-off-by: Piyush Thange <pthange19@gmail.com>
Link: https://lore.kernel.org/r/20210526172900.56093-1-pthange19@gmail.com


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