Staging: rtl8188eu: Fix the warning of space before parenthesis.

This patch fixes the warning of "space prohibited between function name
and open parenthesis '('". The modified file: rtw_cmd.c. The patch also
removes some strange spaces that were generated probably by some editor.

Signed-off-by: Elena Oat <oat.elena@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>