Staging: rtl8723au: Remove white space before semicolon

drivers/staging/rtl8723au/core/rtw_cmd.c warning: space prohibited before semicolon

Signed-off-by: Yeliz Taneroglu <yeliztaneroglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>